<?xml version="1.0" encoding="US-ASCII" ?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.4a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
    <!-- Field: Doc-Info; Name: Misc; Value: 96Mps7xRiXgen8uDanwsWaWCCbP9z5Z8CekhvWBxbUmKzygoa5c6sSIA/xymYcYN -->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:ecd="http://xbrl.sec.gov/ecd/2025" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:srt="http://fasb.org/srt/2025" xmlns:cyd="http://xbrl.sec.gov/cyd/2025" xmlns:stpr="http://xbrl.sec.gov/stpr/2025" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:HROW="http://harrow.com/20251231" elementFormDefault="qualified" targetNamespace="http://harrow.com/20251231">
    <annotation>
      <appinfo>
        <link:roleType roleURI="http://harrow.com/role/Cover" id="Cover">
          <link:definition>00000001 - Document - Cover</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/BalanceSheets" id="BalanceSheets">
          <link:definition>00000002 - Statement - Consolidated Balance Sheets</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/BalanceSheetsParenthetical" id="BalanceSheetsParenthetical">
          <link:definition>00000003 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StatementsOfOperations" id="StatementsOfOperations">
          <link:definition>00000004 - Statement - Consolidated Statements of Operations</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StatementsOfStockholdersEquity" id="StatementsOfStockholdersEquity">
          <link:definition>00000005 - Statement - Consolidated Statements of Stockholders' Equity</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StatementsOfCashFlows" id="StatementsOfCashFlows">
          <link:definition>00000006 - Statement - Consolidated Statements of Cash Flows</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/Organization" id="Organization">
          <link:definition>999014 - Disclosure - ORGANIZATION</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
          <link:definition>999015 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/Revenues" id="Revenues">
          <link:definition>999016 - Disclosure - REVENUES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/RecentProductAcquisitionsAndLicenses" id="RecentProductAcquisitionsAndLicenses">
          <link:definition>999017 - Disclosure - RECENT PRODUCT ACQUISITIONS AND LICENSES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/InvestmentInMeltPharmaceuticalsInc.AndAgreementsRelatedPartyTransactions" id="InvestmentInMeltPharmaceuticalsInc.AndAgreementsRelatedPartyTransactions">
          <link:definition>999018 - Disclosure - INVESTMENT IN MELT PHARMACEUTICALS, INC. AND AGREEMENTS &#8211; RELATED PARTY TRANSACTIONS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/InvestmentInSurfaceOphthalmicsInc.AndAgreements-RelatedPartyTransactions" id="InvestmentInSurfaceOphthalmicsInc.AndAgreements-RelatedPartyTransactions">
          <link:definition>999019 - Disclosure - INVESTMENT IN SURFACE OPHTHALMICS, INC. AND AGREEMENTS - RELATED PARTY TRANSACTIONS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/Inventories" id="Inventories">
          <link:definition>999020 - Disclosure - INVENTORIES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/PrepaidExpensesAndOtherCurrentAssets" id="PrepaidExpensesAndOtherCurrentAssets">
          <link:definition>999021 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/PropertyPlantAndEquipment" id="PropertyPlantAndEquipment">
          <link:definition>999022 - Disclosure - PROPERTY, PLANT AND EQUIPMENT</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/CapitalizedSoftwareCosts" id="CapitalizedSoftwareCosts">
          <link:definition>999023 - Disclosure - CAPITALIZED SOFTWARE COSTS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IntangibleAssetsAndGoodwill" id="IntangibleAssetsAndGoodwill">
          <link:definition>999024 - Disclosure - INTANGIBLE ASSETS AND GOODWILL</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/AccountsPayableAndAccruedExpenses" id="AccountsPayableAndAccruedExpenses">
          <link:definition>999025 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/Debt" id="Debt">
          <link:definition>999026 - Disclosure - DEBT</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/Leases" id="Leases">
          <link:definition>999027 - Disclosure - LEASES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StockholdersEquityAndStock-basedCompensation" id="StockholdersEquityAndStock-basedCompensation">
          <link:definition>999028 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IncomeTaxes" id="IncomeTaxes">
          <link:definition>999029 - Disclosure - INCOME TAXES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/EmployeeSavingsPlan" id="EmployeeSavingsPlan">
          <link:definition>999030 - Disclosure - EMPLOYEE SAVINGS PLAN</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
          <link:definition>999031 - Disclosure - COMMITMENTS AND CONTINGENCIES</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SegmentsAndConcentrations" id="SegmentsAndConcentrations">
          <link:definition>999032 - Disclosure - SEGMENTS AND CONCENTRATIONS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SubsequentEvents" id="SubsequentEvents">
          <link:definition>999033 - Disclosure - SUBSEQUENT EVENTS</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
          <link:definition>999034 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
          <link:definition>999035 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/RevenuesTables" id="RevenuesTables">
          <link:definition>999036 - Disclosure - REVENUES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/InventoriesTables" id="InventoriesTables">
          <link:definition>999037 - Disclosure - INVENTORIES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/PrepaidExpensesAndOtherCurrentAssetsTables" id="PrepaidExpensesAndOtherCurrentAssetsTables">
          <link:definition>999038 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/PropertyPlantAndEquipmentTables" id="PropertyPlantAndEquipmentTables">
          <link:definition>999039 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/CapitalizedSoftwareCostsTables" id="CapitalizedSoftwareCostsTables">
          <link:definition>999040 - Disclosure - CAPITALIZED SOFTWARE COSTS (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IntangibleAssetsAndGoodwillTables" id="IntangibleAssetsAndGoodwillTables">
          <link:definition>999041 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/AccountsPayableAndAccruedExpensesTables" id="AccountsPayableAndAccruedExpensesTables">
          <link:definition>999042 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/DebtTables" id="DebtTables">
          <link:definition>999043 - Disclosure - DEBT (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/LeasesTables" id="LeasesTables">
          <link:definition>999044 - Disclosure - LEASES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StockholdersEquityAndStock-basedCompensationTables" id="StockholdersEquityAndStock-basedCompensationTables">
          <link:definition>999045 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
          <link:definition>999046 - Disclosure - INCOME TAXES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SegmentsAndConcentrationsTables" id="SegmentsAndConcentrationsTables">
          <link:definition>999047 - Disclosure - SEGMENTS AND CONCENTRATIONS (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" id="SummaryOfSignificantAccountingPoliciesDetailsNarrative">
          <link:definition>999048 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfAccountsReceivableAllowanceOfCreditLossDetails" id="ScheduleOfAccountsReceivableAllowanceOfCreditLossDetails">
          <link:definition>999049 - Disclosure - SCHEDULE OF ACCOUNTS RECEIVABLE ALLOWANCE OF CREDIT LOSS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfInvestmentDetails" id="ScheduleOfInvestmentDetails">
          <link:definition>999050 - Disclosure - SCHEDULE OF INVESTMENT (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfEstimatedFairValueDetails" id="ScheduleOfEstimatedFairValueDetails">
          <link:definition>999051 - Disclosure - SCHEDULE OF ESTIMATED FAIR VALUE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfAccrualsAndAllowancesDetails" id="ScheduleOfAccrualsAndAllowancesDetails">
          <link:definition>999052 - Disclosure - SCHEDULE OF ACCRUALS AND ALLOWANCES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/RevenuesDetailsNarrative" id="RevenuesDetailsNarrative">
          <link:definition>999053 - Disclosure - REVENUES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/RecentProductAcquisitionsAndLicensesDetailsNarrative" id="RecentProductAcquisitionsAndLicensesDetailsNarrative">
          <link:definition>999054 - Disclosure - RECENT PRODUCT ACQUISITIONS AND LICENSES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/InvestmentInMeltPharmaceuticalsInc.AndAgreementsRelatedPartyTransactionsDetailsNarrative" id="InvestmentInMeltPharmaceuticalsInc.AndAgreementsRelatedPartyTransactionsDetailsNarrative">
          <link:definition>999055 - Disclosure - INVESTMENT IN MELT PHARMACEUTICALS, INC. AND AGREEMENTS &#8211; RELATED PARTY TRANSACTIONS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/InvestmentInSurfaceOphthalmicsInc.AndAgreements-RelatedPartyTransactionsDetailsNarrative" id="InvestmentInSurfaceOphthalmicsInc.AndAgreements-RelatedPartyTransactionsDetailsNarrative">
          <link:definition>999056 - Disclosure - INVESTMENT IN SURFACE OPHTHALMICS, INC. AND AGREEMENTS - RELATED PARTY TRANSACTIONS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfInventoriesDetails" id="ScheduleOfInventoriesDetails">
          <link:definition>999057 - Disclosure - SCHEDULE OF INVENTORIES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails" id="ScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails">
          <link:definition>999058 - Disclosure - SCHEDULE OF PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfPropertyPlantAndEquipmentDetails" id="ScheduleOfPropertyPlantAndEquipmentDetails">
          <link:definition>999059 - Disclosure - SCHEDULE OF PROPERTY, PLANT AND EQUIPMENT (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/PropertyPlantAndEquipmentDetailsNarrative" id="PropertyPlantAndEquipmentDetailsNarrative">
          <link:definition>999060 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfCapitalizedSoftwareCostsDetails" id="ScheduleOfCapitalizedSoftwareCostsDetails">
          <link:definition>999061 - Disclosure - SCHEDULE OF CAPITALIZED SOFTWARE COSTS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/CapitalizedSoftwareCostsDetailsNarrative" id="CapitalizedSoftwareCostsDetailsNarrative">
          <link:definition>999062 - Disclosure - CAPITALIZED SOFTWARE COSTS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfIntangibleAssetsDetails" id="ScheduleOfIntangibleAssetsDetails">
          <link:definition>999063 - Disclosure - SCHEDULE OF INTANGIBLE ASSETS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfAmortizationExpensesForIntangibleAssetsDetails" id="ScheduleOfAmortizationExpensesForIntangibleAssetsDetails">
          <link:definition>999064 - Disclosure - SCHEDULE OF AMORTIZATION EXPENSES FOR INTANGIBLE ASSETS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfEstimatedFutureAmortizationExpenseDetails" id="ScheduleOfEstimatedFutureAmortizationExpenseDetails">
          <link:definition>999065 - Disclosure - SCHEDULE OF ESTIMATED FUTURE AMORTIZATION EXPENSE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IntangibleAssetsAndGoodwillDetailsNarrative" id="IntangibleAssetsAndGoodwillDetailsNarrative">
          <link:definition>999066 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfAccountsPayableAndAccruedExpensesDetails" id="ScheduleOfAccountsPayableAndAccruedExpensesDetails">
          <link:definition>999067 - Disclosure - SCHEDULE OF ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfLongTermDebtDetails" id="ScheduleOfLongTermDebtDetails">
          <link:definition>999068 - Disclosure - SCHEDULE OF LONG TERM DEBT (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfLongTermDebtDetailsParenthetical" id="ScheduleOfLongTermDebtDetailsParenthetical">
          <link:definition>999069 - Disclosure - SCHEDULE OF LONG TERM DEBT (Details) (Parenthetical)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfFutureMinimumPaymentUnderNotesPayablesDetails" id="ScheduleOfFutureMinimumPaymentUnderNotesPayablesDetails">
          <link:definition>999070 - Disclosure - SCHEDULE OF FUTURE MINIMUM PAYMENT UNDER NOTES PAYABLES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/DebtDetailsNarrative" id="DebtDetailsNarrative">
          <link:definition>999071 - Disclosure - DEBT (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/LeasesDetailsNarrative" id="LeasesDetailsNarrative">
          <link:definition>999072 - Disclosure - LEASES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfFutureLeasePaymentsUnderOperatingLeasesDetails" id="ScheduleOfFutureLeasePaymentsUnderOperatingLeasesDetails">
          <link:definition>999073 - Disclosure - SCHEDULE OF FUTURE LEASE PAYMENTS UNDER OPERATING LEASES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfStockOptionPlanActivityDetails" id="ScheduleOfStockOptionPlanActivityDetails">
          <link:definition>999074 - Disclosure - SCHEDULE OF STOCK OPTION PLAN ACTIVITY (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfFairValueAssumptionsDetails" id="ScheduleOfFairValueAssumptionsDetails">
          <link:definition>999075 - Disclosure - SCHEDULE OF FAIR VALUE ASSUMPTIONS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfStockOptionOutstandingAndExercisableDetails" id="ScheduleOfStockOptionOutstandingAndExercisableDetails">
          <link:definition>999076 - Disclosure - SCHEDULE OF STOCK OPTION OUTSTANDING AND EXERCISABLE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfPerformanceStockUnitsDetails" id="ScheduleOfPerformanceStockUnitsDetails">
          <link:definition>999077 - Disclosure - SCHEDULE OF PERFORMANCE STOCK UNITS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfPerformanceStockUnitsActivityDetails" id="ScheduleOfPerformanceStockUnitsActivityDetails">
          <link:definition>999078 - Disclosure - SCHEDULE OF PERFORMANCE STOCK UNITS ACTIVITY (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfRestrictedStockUnitsActivityDetails" id="ScheduleOfRestrictedStockUnitsActivityDetails">
          <link:definition>999079 - Disclosure - SCHEDULE OF RESTRICTED STOCK UNITS ACTIVITY (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsDetails" id="ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsDetails">
          <link:definition>999080 - Disclosure - SCHEDULE OF STOCK BASED COMPENSATION GRANTED TO EMPLOYEES, DIRECTORS AND CONSULTANTS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/StockholdersEquityAndStock-basedCompensationDetailsNarrative" id="StockholdersEquityAndStock-basedCompensationDetailsNarrative">
          <link:definition>999081 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfProvisionForIncomeTaxesDetails" id="ScheduleOfProvisionForIncomeTaxesDetails">
          <link:definition>999082 - Disclosure - SCHEDULE OF PROVISION FOR INCOME TAXES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfIncomeTaxRateAndTaxProvisionDetails" id="ScheduleOfIncomeTaxRateAndTaxProvisionDetails">
          <link:definition>999083 - Disclosure - SCHEDULE OF INCOME TAX RATE AND TAX PROVISION (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfIncomeTaxRateDetails" id="ScheduleOfIncomeTaxRateDetails">
          <link:definition>999084 - Disclosure - SCHEDULE OF INCOME TAX RATE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" id="ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails">
          <link:definition>999085 - Disclosure - SCHEDULE OF DEFERRED TAX ASSETS AND LIABILITIES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfValuationAllowanceDetails" id="ScheduleOfValuationAllowanceDetails">
          <link:definition>999086 - Disclosure - SCHEDULE OF VALUATION ALLOWANCE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfStateIncomeTaxPaidDetails" id="ScheduleOfStateIncomeTaxPaidDetails">
          <link:definition>999087 - Disclosure - SCHEDULE OF STATE INCOME TAX PAID (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfUnrecognizedTaxBenefitsDetails" id="ScheduleOfUnrecognizedTaxBenefitsDetails">
          <link:definition>999088 - Disclosure - SCHEDULE OF UNRECOGNIZED TAX BENEFITS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/IncomeTaxesDetailsNarrative" id="IncomeTaxesDetailsNarrative">
          <link:definition>999089 - Disclosure - INCOME TAXES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/EmployeeSavingsPlanDetailsNarrative" id="EmployeeSavingsPlanDetailsNarrative">
          <link:definition>999090 - Disclosure - EMPLOYEE SAVINGS PLAN (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/CommitmentsAndContingenciesDetailsNarrative" id="CommitmentsAndContingenciesDetailsNarrative">
          <link:definition>999091 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfSegmentNetRevenuesDetails" id="ScheduleOfSegmentNetRevenuesDetails">
          <link:definition>999092 - Disclosure - SCHEDULE OF SEGMENT NET REVENUES (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/ScheduleOfRevenuesBySegmentDetails" id="ScheduleOfRevenuesBySegmentDetails">
          <link:definition>999093 - Disclosure - SCHEDULE OF REVENUES BY SEGMENT (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SegmentsAndConcentrationsDetailsNarrative" id="SegmentsAndConcentrationsDetailsNarrative">
          <link:definition>999094 - Disclosure - SEGMENTS AND CONCENTRATIONS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://harrow.com/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
          <link:definition>999095 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:linkbaseRef xlink:type="simple" xlink:href="hrow-20251231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="hrow-20251231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="hrow-20251231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="hrow-20251231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
      </appinfo>
    </annotation>
    <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd" />
    <import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd" />
    <import namespace="http://fasb.org/us-types/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd" />
    <import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd" />
    <import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd" />
    <import namespace="http://xbrl.sec.gov/cyd/2025" schemaLocation="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd" />
    <import namespace="http://xbrl.sec.gov/stpr/2025" schemaLocation="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd" />
    <element id="HROW_ProductSalesNetMember" name="ProductSalesNetMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherRevenuesMember" name="OtherRevenuesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SurfaceOphthalmicsIncMember" name="SurfaceOphthalmicsIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockOptionsUnvestedRSUsAndUnvestedPSUsMember" name="StockOptionsUnvestedRSUsAndUnvestedPSUsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndThirtyNotesMember" name="TwoThousandAndThirtyNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndTwentySixNotesMember" name="TwoThousandAndTwentySixNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndTwentySevenNotesMember" name="TwoThousandAndTwentySevenNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OaktreeLoanMember" name="OaktreeLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ChargebacksMember" name="ChargebacksMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GovernmentRebatesMember" name="GovernmentRebatesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AllowancesForSalesReturnsMember" name="AllowancesForSalesReturnsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AdministrativeFeesAndOtherRebatesMember" name="AdministrativeFeesAndOtherRebatesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CoPayAssistanceMember" name="CoPayAssistanceMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReservesForCashDiscountMember" name="ReservesForCashDiscountMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetPurchaseLicenseandRelatedAgreementsMember" name="AssetPurchaseLicenseandRelatedAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SamsungAgreementMember" name="SamsungAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FormosaAgreementMember" name="FormosaAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_VEVYEMember" name="VEVYEMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SantenProductsAcquisitionMember" name="SantenProductsAcquisitionMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OneTimePaymentMember" name="OneTimePaymentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetPurchaseAgreementMember" name="AssetPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NovartisMember" name="NovartisMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MeltLoanAgreementMember" name="MeltLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeriesBOnePreferredStockMember" name="SeriesBOnePreferredStockMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MergerAgreementMember" name="MergerAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CapitalizedSoftwareDevelopmentCostsMember" name="CapitalizedSoftwareDevelopmentCostsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ThirdPartySoftwareLicenseMember" name="ThirdPartySoftwareLicenseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LicensesMember" name="LicensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AcquiredProductRightsMember" name="AcquiredProductRightsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StatePharmacyLicensesMember" name="StatePharmacyLicensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NonCompetitionClauseMember" name="NonCompetitionClauseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FifthThirdRevolvingCreditFacilityMember" name="FifthThirdRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeniorSecuredRevolvingCreditFacilityMember" name="SeniorSecuredRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeniorNotesDueTwoThousandTwentyThirtyMember" name="SeniorNotesDueTwoThousandTwentyThirtyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherOfferingExpenseMember" name="OtherOfferingExpenseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SecondAmendmentMember" name="SecondAmendmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OaktreeFundAdministrationLLCMember" name="OaktreeFundAdministrationLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OaktreeLoanDueTwoThousandTwentySixMember" name="OaktreeLoanDueTwoThousandTwentySixMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeniorNotesDueTwoThousandTwentySixMember" name="SeniorNotesDueTwoThousandTwentySixMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeniorNotesDueTwoThousandTwentySevenMember" name="SeniorNotesDueTwoThousandTwentySevenMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LoanAndSecurityAgreementMember" name="LoanAndSecurityAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_BRLoanMember" name="BRLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeniorNotesDueTwoThousandThirtyMember" name="SeniorNotesDueTwoThousandThirtyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OaktreeLoanDueJanuaryTwoThousandTwentySixMember" name="OaktreeLoanDueJanuaryTwoThousandTwentySixMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OfficeAndLaboratorySpaceMember" name="OfficeAndLaboratorySpaceMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CarlsbadMember" name="CarlsbadMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LedgewoodMember" name="LedgewoodMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LeaseAmendmentMember" name="LeaseAmendmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NashvilleMember" name="NashvilleMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndSeventeenIncentiveStockandAwardsPlanMember" name="TwoThousandAndSeventeenIncentiveStockandAwardsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndFiftyFiveIncentiveStockandAwardsPlanMember" name="TwoThousandAndFiftyFiveIncentiveStockandAwardsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesAndConsultantMember" name="EmployeesAndConsultantMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesAndDirectorsMember" name="EmployeesAndDirectorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PerformanceStockUnitsPSUMember" name="PerformanceStockUnitsPSUMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationAwardTrancheFourMember" name="ShareBasedCompensationAwardTrancheFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PerformanceStockUnitsMember" name="PerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DirectorsMember" name="DirectorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesMember" name="EmployeesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockOptionPlanOneMember" name="StockOptionPlanOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeOneMember" name="RangeOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeTwoMember" name="RangeTwoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeThreeMember" name="RangeThreeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeFourMember" name="RangeFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeFiveMember" name="RangeFiveMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeSixMember" name="RangeSixMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeSevenMember" name="RangeSevenMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeEightMember" name="RangeEightMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeNineMember" name="RangeNineMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeTenMember" name="RangeTenMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ConsultantsMember" name="ConsultantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TaxYear2032Member" name="TaxYear2032Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherMember" name="OtherMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PunitiveDamagesMember" name="PunitiveDamagesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ActualDamagesMember" name="ActualDamagesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OSRXLiabilityMember" name="OSRXLiabilityMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoCustomerMember" name="TwoCustomerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NoCustomerMember" name="NoCustomerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ThreeCustomersMember" name="ThreeCustomersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoSuppliersMember" name="TwoSuppliersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PurchasesMember" name="PurchasesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_BrandedMember" name="BrandedMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ImprimisRxMember" name="ImprimisRxMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SellingGeneralAndAdministrativeExpenseMember" name="SellingGeneralAndAdministrativeExpenseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ResearchAndDevelopmentExpensesMember" name="ResearchAndDevelopmentExpensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IHEEZOMember" name="IHEEZOMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherProductsMember" name="OtherProductsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherRevenueMember" name="OtherRevenueMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SantenAgreementsMember" name="SantenAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccruedRebatesAndCopayAssistance" name="AccruedRebatesAndCopayAssistance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockIssuedDuringPeriodValueRestrictedStockUnitPerformanceStockUnitAwardGross" name="StockIssuedDuringPeriodValueRestrictedStockUnitPerformanceStockUnitAwardGross" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockIssuedDuringPeriodSharesRestrictedStockUnitPerformanceStockUnitAwardGross" name="StockIssuedDuringPeriodSharesRestrictedStockUnitPerformanceStockUnitAwardGross" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NoncashLeaseExpense" name="NoncashLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AcquisitionOfBusiness" name="AcquisitionOfBusiness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PurchaseOfProductAndRelatedPatents" name="PurchaseOfProductAndRelatedPatents" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PaymentOfPayrollTaxesUponVestingOfPSUsRSUsAndExerciseOfStockOptions" name="PaymentOfPayrollTaxesUponVestingOfPSUsRSUsAndExerciseOfStockOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccrualOfMilestonePayment" name="AccrualOfMilestonePayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReclassificationOfDeferredFinancingCosts" name="ReclassificationOfDeferredFinancingCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccrualOfExitFeeRelatedToLoan" name="AccrualOfExitFeeRelatedToLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ChangeInExtensionAssumptionsOfRightofuseAssetsForOperatingLeaseObligations" name="ChangeInExtensionAssumptionsOfRightofuseAssetsForOperatingLeaseObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReclassificationOfDeferredCommitmentFeesFromPrepaidExpensesIntoDebtIssuanceCosts" name="ReclassificationOfDeferredCommitmentFeesFromPrepaidExpensesIntoDebtIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InsurancePremiumFinanced" name="InsurancePremiumFinanced" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureInvestmentInSurfaceOphthalmicsInc.AndAgreementsRelatedPartyTransactionsAbstract" name="DisclosureInvestmentInSurfaceOphthalmicsInc.AndAgreementsRelatedPartyTransactionsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InvestmentsAndAgreementsRelatedPartyTransactionsTextBlock" name="InvestmentsAndAgreementsRelatedPartyTransactionsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureCapitalizedSoftwareCostsAbstract" name="DisclosureCapitalizedSoftwareCostsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CapitalizedSoftwareCostsTextBlock" name="CapitalizedSoftwareCostsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RisksUncertaintiesAndLiquidityPolicyTextBlock" name="RisksUncertaintiesAndLiquidityPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NoncontrollingInterestPolicyTextBlock" name="NoncontrollingInterestPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InvestmentTwoPolicyTextBlock" name="InvestmentTwoPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccountingGuidanceIssuedButNotAdoptedPolicyTextBlock" name="AccountingGuidanceIssuedButNotAdoptedPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfValuationAndQualifyingAccountsDisclosureTableTextBlock" name="ScheduleOfValuationAndQualifyingAccountsDisclosureTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CapitalizedSoftwareDevelopmentCostsTableTextBlock" name="CapitalizedSoftwareDevelopmentCostsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfEffectiveIncomesTaxRateReconciliationTableTextBlock" name="ScheduleOfEffectiveIncomesTaxRateReconciliationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfValuationAllowanceTableTextBlock" name="ScheduleOfValuationAllowanceTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfFederalIncomeTaxTableTextBlock" name="ScheduleOfFederalIncomeTaxTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfSegmentReportingInformationTextBlock" name="ScheduleOfSegmentReportingInformationTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccountingPoliciesTable" name="AccountingPoliciesTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="HROW_AccountingPoliciesLineItems" name="AccountingPoliciesLineItems" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ConsolidationBasisDescription" name="ConsolidationBasisDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccountsReceivableContractualAdjustments" name="AccountsReceivableContractualAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccountsReceivableAfterAllowanceForCreditLossAndContractualAdjustments" name="AccountsReceivableAfterAllowanceForCreditLossAndContractualAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedButUnissuedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedButUnissuedInPeriod" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GainLossOnValuationAllowancesAndReservesBalance" name="GainLossOnValuationAllowancesAndReservesBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UpfrontAndMilestonePayments" name="UpfrontAndMilestonePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DescriptionOfLicensesAgreements" name="DescriptionOfLicensesAgreements" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FiniteLivedIntangibleAssetsCostIncurred" name="FiniteLivedIntangibleAssetsCostIncurred" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TermMilestonePayment" name="TermMilestonePayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SharesIssuedUponInvestmentUnderEquityMethod" name="SharesIssuedUponInvestmentUnderEquityMethod" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NoteReceivableNonCurrent" name="NoteReceivableNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ContingentObligation" name="ContingentObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ContingentObligationRelatedToPurchaseOfIntangiblesShares" name="ContingentObligationRelatedToPurchaseOfIntangiblesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetAcquisitionConsiderationTransferredOtherCosts" name="AssetAcquisitionConsiderationTransferredOtherCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PrepaidComputerSoftwareLicensesAndRelatedExpenses" name="PrepaidComputerSoftwareLicensesAndRelatedExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PrefundedAssistance" name="PrefundedAssistance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReceivableDueFromRelatedParty" name="ReceivableDueFromRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PrepaidPrescriptionDrugUserFees" name="PrepaidPrescriptionDrugUserFees" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ComputerHardwareGross" name="ComputerHardwareGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FiniteLivedIntangibleAssetsImpairment" name="FiniteLivedIntangibleAssetsImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IndefiniteLivedIntangibleAssetsAccumulatedAmortization" name="IndefiniteLivedIntangibleAssetsAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IndefiniteLivedIntangibleAssetsImpairment" name="IndefiniteLivedIntangibleAssetsImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnusedFeeRate" name="UnusedFeeRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnaccruedExitFee" name="UnaccruedExitFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AmortizationOfFinancingCostsAndDiscount" name="AmortizationOfFinancingCostsAndDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnaccruedInterest" name="UnaccruedInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LeasesTable" name="LeasesTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="HROW_LeaseExpirationDateDescription" name="LeaseExpirationDateDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AdditionalAreaOfLand" name="AdditionalAreaOfLand" nillable="true" xbrli:periodType="duration" type="dtr-types:areaItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPerShare" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPerShare" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsAbstract" name="ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsTable" name="ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsAndConsultantsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="HROW_OtherOfferingExpenses" name="OtherOfferingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureFactor" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureFactor" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SharebasedCompensationArrangementBySharebasedPaymentAwardDerivedServicePeriod" name="SharebasedCompensationArrangementBySharebasedPaymentAwardDerivedServicePeriod" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionFeesAmount" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionFeesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionFees" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionFees" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IncomeTaxRateReconciliationDeductionsIncentiveStockOptionsAmount" name="IncomeTaxRateReconciliationDeductionsIncentiveStockOptionsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationDeductionsIncentiveStockOptions" name="EffectiveIncomeTaxRateReconciliationDeductionsIncentiveStockOptions" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IncomeTaxReconciliationChangesUnrecognizedTaxBenefitsAmount" name="IncomeTaxReconciliationChangesUnrecognizedTaxBenefitsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationChangesUnrecognizedTaxBenefits" name="EffectiveIncomeTaxRateReconciliationChangesUnrecognizedTaxBenefits" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationExcessEmployeeRemuneration" name="EffectiveIncomeTaxRateReconciliationExcessEmployeeRemuneration" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationUncertainTaxPosition" name="EffectiveIncomeTaxRateReconciliationUncertainTaxPosition" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationProvisionToReturnTrueUps" name="EffectiveIncomeTaxRateReconciliationProvisionToReturnTrueUps" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsInterestExpenseLimitationCarryforwards" name="DeferredTaxAssetsInterestExpenseLimitationCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetTAxCreditCarryForwardsDepreciationAndAmortization" name="DeferredTaxAssetTAxCreditCarryForwardsDepreciationAndAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsAccruedChargebacksReturns" name="DeferredTaxAssetsAccruedChargebacksReturns" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsStockCompensation" name="DeferredTaxAssetsStockCompensation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsAccruedRebates" name="DeferredTaxAssetsAccruedRebates" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsLeaseLiability" name="DeferredTaxAssetsLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsAccruedBonus" name="DeferredTaxAssetsAccruedBonus" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsObsoleteInventoryReserve" name="DeferredTaxAssetsObsoleteInventoryReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsAccruedVacation" name="DeferredTaxAssetsAccruedVacation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsResearchCreditCarryforwards" name="DeferredTaxAssetsResearchCreditCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsOtherAccrualsAndReserves" name="DeferredTaxAssetsOtherAccrualsAndReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxLiabilitiesTaxAccountingMethodChange" name="DeferredTaxLiabilitiesTaxAccountingMethodChange" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxLiabilitiesDepreciation" name="DeferredTaxLiabilitiesDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxLiabilitiesRightofuseAssets" name="DeferredTaxLiabilitiesRightofuseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsIncreasesValuationAllowance" name="DeferredTaxAssetsIncreasesValuationAllowance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetsDecreasesValuationAllowance" name="DeferredTaxAssetsDecreasesValuationAllowance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions" name="UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PercentageOfSalaryDepositsInTaxDeferredInvestmentAccount" name="PercentageOfSalaryDepositsInTaxDeferredInvestmentAccount" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MilestonePayment" name="MilestonePayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AcquiredNewDrugApplicationsMember" name="AcquiredNewDrugApplicationsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AcquisitionOfMeltPharmaceuticals" name="AcquisitionOfMeltPharmaceuticals" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PaymentsToAcquisitionOfMeltPharmaceuticals" name="PaymentsToAcquisitionOfMeltPharmaceuticals" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NotesPayablePercent" name="NotesPayablePercent" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MilestonesReceivableBasedOnAgreedRevenues" name="MilestonesReceivableBasedOnAgreedRevenues" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccrualOfExitFeeRelatedToOaktreeLoan" name="AccrualOfExitFeeRelatedToOaktreeLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AaggregateAmountInCash" name="AaggregateAmountInCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AnnualNetSalesMilestones" name="AnnualNetSalesMilestones" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TotalAnnualNetSalesMilestones" name="TotalAnnualNetSalesMilestones" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccountsReceivables" name="AccountsReceivables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NewDrugApplicationsMember" name="NewDrugApplicationsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStockCompensationWindFallsCost" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStockCompensationWindFallsCost" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncentiveStockOptions" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncentiveStockOptions" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStockCompensationWindFallsAmountCost" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStockCompensationWindFallsAmountCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetAcquisitionConsideration" name="AssetAcquisitionConsideration" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetAcquisitionConsiderationOthercosts" name="AssetAcquisitionConsiderationOthercosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncentiveStockOptionsAmount" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncentiveStockOptionsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IncomeTaxReconciliationNondeductibleChangesUnrecognizedTaxBenefitsAmount" name="IncomeTaxReconciliationNondeductibleChangesUnrecognizedTaxBenefitsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfComponentsOfIncomesTaxExpenseBenefitTableTextBlock" name="ScheduleOfComponentsOfIncomesTaxExpenseBenefitTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetTAxCreditXarryForwardsDepreciationAndAmortization" name="DeferredTaxAssetTAxCreditXarryForwardsDepreciationAndAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InterestExpenseLimitationCarryforwards" name="InterestExpenseLimitationCarryforwards" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccruedChargebacksReturns" name="AccruedChargebacksReturns" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReportableSegmentAggregationResearchAndDevelopmentMember" name="ReportableSegmentAggregationResearchAndDevelopmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockCompensation" name="StockCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccruedRebates" name="AccruedRebates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LeaseLiability" name="LeaseLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccruedBonus" name="AccruedBonus" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ObsoleteInventoryReserve" name="ObsoleteInventoryReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AccruedVacation" name="AccruedVacation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ResearchCreditCarryforwards" name="ResearchCreditCarryforwards" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherAccrualsAndReserves" name="OtherAccrualsAndReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SingleCustomerMember" name="SingleCustomerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OneCustomerMember" name="OneCustomerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ThreeSuppliersMember" name="ThreeSuppliersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DeferredTaxAssetOperatingLossCarryforwards" name="DeferredTaxAssetOperatingLossCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NJMember" name="NJMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TennesseeMember" name="TennesseeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ColoradoMember" name="ColoradoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MassachusettsMember" name="MassachusettsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
