<?xml version="1.0" encoding="US-ASCII" ?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.5a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
    <!-- Field: Doc-Info; Name: Misc; Value: 96Mps7xRiXgen8uDanwsWayMKbP9z5Z8eekhvWB3bZlKTygiUvrUzCVha6T2Yc8I -->
<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/2026" xmlns:us-gaap="http://fasb.org/us-gaap/2026" xmlns:srt="http://fasb.org/srt/2026" xmlns:srt-types="http://fasb.org/srt-types/2026" xmlns:ecd="http://xbrl.sec.gov/ecd/2026" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:PRPH="http://ir.prophaselabs.com/20260331" elementFormDefault="qualified" targetNamespace="http://ir.prophaselabs.com/20260331">
    <annotation>
      <appinfo>
        <link:roleType roleURI="http://ir.prophaselabs.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://ir.prophaselabs.com/role/BalanceSheets" id="BalanceSheets">
          <link:definition>00000002 - Statement - Condensed 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://ir.prophaselabs.com/role/BalanceSheetsParenthetical" id="BalanceSheetsParenthetical">
          <link:definition>00000003 - Statement - Condensed 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://ir.prophaselabs.com/role/StatementsOfOperations" id="StatementsOfOperations">
          <link:definition>00000004 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</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://ir.prophaselabs.com/role/StatementsOfOperationsAndComprehensiveIncomeLoss" id="StatementsOfOperationsAndComprehensiveIncomeLoss">
          <link:definition>00000005 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited)</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://ir.prophaselabs.com/role/StatementsOfStockholdersEquity" id="StatementsOfStockholdersEquity">
          <link:definition>00000006 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited)</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://ir.prophaselabs.com/role/StatementsOfStockholdersEquityParenthetical" id="StatementsOfStockholdersEquityParenthetical">
          <link:definition>00000007 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (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://ir.prophaselabs.com/role/StatementsOfCashFlows" id="StatementsOfCashFlows">
          <link:definition>00000008 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</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://ir.prophaselabs.com/role/OrganizationAndBusiness" id="OrganizationAndBusiness">
          <link:definition>999014 - Disclosure - Organization and Business</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://ir.prophaselabs.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://ir.prophaselabs.com/role/AssetAcquisition" id="AssetAcquisition">
          <link:definition>999016 - Disclosure - Asset Acquisition</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://ir.prophaselabs.com/role/IntangibleAssetsNet" id="IntangibleAssetsNet">
          <link:definition>999017 - Disclosure - Intangible Assets, Net</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://ir.prophaselabs.com/role/OutstandingDebt" id="OutstandingDebt">
          <link:definition>999018 - Disclosure - Outstanding 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://ir.prophaselabs.com/role/StockholdersEquity" id="StockholdersEquity">
          <link:definition>999019 - Disclosure - Stockholders&#8217; 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://ir.prophaselabs.com/role/IncomeTaxes" id="IncomeTaxes">
          <link:definition>999020 - 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://ir.prophaselabs.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
          <link:definition>999021 - 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://ir.prophaselabs.com/role/Leases" id="Leases">
          <link:definition>999022 - 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://ir.prophaselabs.com/role/SegmentInformation" id="SegmentInformation">
          <link:definition>999023 - Disclosure - Segment Information</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://ir.prophaselabs.com/role/NetEarningsLossPerShare" id="NetEarningsLossPerShare">
          <link:definition>999024 - Disclosure - Net Earnings (Loss) Per Share</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://ir.prophaselabs.com/role/RelatedParties" id="RelatedParties">
          <link:definition>999025 - Disclosure - Related Parties</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://ir.prophaselabs.com/role/DiscontinuedOperations" id="DiscontinuedOperations">
          <link:definition>999026 - Disclosure - Discontinued 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://ir.prophaselabs.com/role/VoluntaryBankruptcyFilingAndDeconsolidation" id="VoluntaryBankruptcyFilingAndDeconsolidation">
          <link:definition>999027 - Disclosure - Voluntary Bankruptcy Filing and Deconsolidation</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://ir.prophaselabs.com/role/FairValueMeasurements" id="FairValueMeasurements">
          <link:definition>999028 - Disclosure - Fair Value Measurements</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://ir.prophaselabs.com/role/SubsequentEvents" id="SubsequentEvents">
          <link:definition>999029 - 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://ir.prophaselabs.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
          <link:definition>999030 - 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://ir.prophaselabs.com/role/IntangibleAssetsNetTables" id="IntangibleAssetsNetTables">
          <link:definition>999031 - Disclosure - Intangible Assets, Net (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://ir.prophaselabs.com/role/StockholdersEquityTables" id="StockholdersEquityTables">
          <link:definition>999032 - Disclosure - Stockholders&#8217; Equity (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://ir.prophaselabs.com/role/LeasesTables" id="LeasesTables">
          <link:definition>999033 - 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://ir.prophaselabs.com/role/SegmentInformationTables" id="SegmentInformationTables">
          <link:definition>999034 - Disclosure - Segment Information (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://ir.prophaselabs.com/role/NetEarningsLossPerShareTables" id="NetEarningsLossPerShareTables">
          <link:definition>999035 - Disclosure - Net Earnings (Loss) Per Share (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://ir.prophaselabs.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
          <link:definition>999036 - Disclosure - Fair Value Measurements (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://ir.prophaselabs.com/role/OrganizationAndBusinessDetailsNarrative" id="OrganizationAndBusinessDetailsNarrative">
          <link:definition>999037 - Disclosure - Organization and Business (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://ir.prophaselabs.com/role/AssetAcquisitionDetailsNarrative" id="AssetAcquisitionDetailsNarrative">
          <link:definition>999038 - Disclosure - Asset Acquisition (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://ir.prophaselabs.com/role/ScheduleOfIntangibleAssetsDetails" id="ScheduleOfIntangibleAssetsDetails">
          <link:definition>999039 - 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://ir.prophaselabs.com/role/ScheduleEstimatedFutureAmortizationExpenseOfAcquiredIntangibleAssetsDetails" id="ScheduleEstimatedFutureAmortizationExpenseOfAcquiredIntangibleAssetsDetails">
          <link:definition>999040 - Disclosure - Schedule Estimated Future Amortization Expense of Acquired 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://ir.prophaselabs.com/role/IntangibleAssetsNetDetailsNarrative" id="IntangibleAssetsNetDetailsNarrative">
          <link:definition>999041 - Disclosure - Intangible Assets, Net (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://ir.prophaselabs.com/role/OutstandingDebtDetailsNarrative" id="OutstandingDebtDetailsNarrative">
          <link:definition>999042 - Disclosure - Outstanding 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://ir.prophaselabs.com/role/ScheduleOfStockOptionsActivityDetails" id="ScheduleOfStockOptionsActivityDetails">
          <link:definition>999043 - Disclosure - Schedule of Stock Options 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://ir.prophaselabs.com/role/ScheduleOfWarrantActivityDetails" id="ScheduleOfWarrantActivityDetails">
          <link:definition>999044 - Disclosure - Schedule of Warrant 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://ir.prophaselabs.com/role/StockholdersEquityDetailsNarrative" id="StockholdersEquityDetailsNarrative">
          <link:definition>999045 - Disclosure - Stockholders&#8217; Equity (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://ir.prophaselabs.com/role/CommitmentsAndContingenciesDetailsNarrative" id="CommitmentsAndContingenciesDetailsNarrative">
          <link:definition>999046 - 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://ir.prophaselabs.com/role/ScheduleOfQuantitativeInformationAboutOperatingAndFinanceLeasesDetails" id="ScheduleOfQuantitativeInformationAboutOperatingAndFinanceLeasesDetails">
          <link:definition>999047 - Disclosure - Schedule of Quantitative Information about Operating and Finance 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://ir.prophaselabs.com/role/ScheduleOfQuantitativeInformationAboutOperatingAndFinanceLeasesDetailsParenthetical" id="ScheduleOfQuantitativeInformationAboutOperatingAndFinanceLeasesDetailsParenthetical">
          <link:definition>999048 - Disclosure - Schedule of Quantitative Information about Operating and Finance Leases (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://ir.prophaselabs.com/role/ScheduleOfMaturitiesOfFinanceLeasesDetails" id="ScheduleOfMaturitiesOfFinanceLeasesDetails">
          <link:definition>999049 - Disclosure - Schedule of Maturities of Finance 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://ir.prophaselabs.com/role/LeasesDetailsNarrative" id="LeasesDetailsNarrative">
          <link:definition>999050 - 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://ir.prophaselabs.com/role/ScheduleOfSegmentInformationDetails" id="ScheduleOfSegmentInformationDetails">
          <link:definition>999051 - Disclosure - Schedule of Segment Information (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://ir.prophaselabs.com/role/SegmentInformationDetailsNarrative" id="SegmentInformationDetailsNarrative">
          <link:definition>999052 - Disclosure - Segment Information (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://ir.prophaselabs.com/role/ScheduleOfReconciliationOfWeightedAverageNumberOfCommonSharesOutstandingUsedInCalculatingBasicAndDilutedNetLossPerShareDetails" id="ScheduleOfReconciliationOfWeightedAverageNumberOfCommonSharesOutstandingUsedInCalculatingBasicAndDilutedNetLossPerShareDetails">
          <link:definition>999053 - Disclosure - Schedule of Reconciliation of the Weighted Average Number of Common Shares Outstanding used in Calculating Basic and Diluted Net Loss Per Share (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://ir.prophaselabs.com/role/ScheduleOfAnti-dilutiveSecuritiesExcludedFromIncomePerShareComputationDetails" id="ScheduleOfAnti-dilutiveSecuritiesExcludedFromIncomePerShareComputationDetails">
          <link:definition>999054 - Disclosure - Schedule of Anti-dilutive Securities Excluded from the Income Per Share Computation (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://ir.prophaselabs.com/role/RelatedPartiesDetailsNarrative" id="RelatedPartiesDetailsNarrative">
          <link:definition>999055 - Disclosure - Related Parties (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://ir.prophaselabs.com/role/DiscontinuedOperationsDetailsNarrative" id="DiscontinuedOperationsDetailsNarrative">
          <link:definition>999056 - Disclosure - Discontinued Operations (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://ir.prophaselabs.com/role/VoluntaryBankruptcyFilingAndDeconsolidationDetailsNarrative" id="VoluntaryBankruptcyFilingAndDeconsolidationDetailsNarrative">
          <link:definition>999057 - Disclosure - Voluntary Bankruptcy Filing and Deconsolidation (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://ir.prophaselabs.com/role/ScheduleOfFairValueOfCompanysFinancialLiabilitiesThatAreMeasuredAtFairValueOnRecurringBasisDetails" id="ScheduleOfFairValueOfCompanysFinancialLiabilitiesThatAreMeasuredAtFairValueOnRecurringBasisDetails">
          <link:definition>999058 - Disclosure - Schedule of Fair Value of the Company&#8217;s Financial Liabilities That are Measured at Fair Value On a Recurring Basis (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://ir.prophaselabs.com/role/ScheduleOfChangesInFairValueDetails" id="ScheduleOfChangesInFairValueDetails">
          <link:definition>999059 - Disclosure - Schedule of Changes in 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://ir.prophaselabs.com/role/ScheduleOfFairValueMeasurementInputsAndValuationTechniquesDetails" id="ScheduleOfFairValueMeasurementInputsAndValuationTechniquesDetails">
          <link:definition>999060 - Disclosure - Schedule of Fair Value Measurement Inputs and Valuation Techniques (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://ir.prophaselabs.com/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
          <link:definition>999061 - 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="prph-20260331_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="prph-20260331_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="prph-20260331_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="prph-20260331_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/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
    <import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd" />
    <import namespace="http://fasb.org/us-types/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
    <import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd" />
    <import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd" />
    <import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd" />
    <element id="PRPH_SubscriptionReceivableMember" name="SubscriptionReceivableMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_StellaPurchaseAgreementMember" name="StellaPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CLIALicenseMember" name="CLIALicenseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NoteMember" name="NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_JanuaryLabrysNoteMember" name="JanuaryLabrysNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_JanuaryLabrysSPAMember" name="JanuaryLabrysSPAMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_MarchLabrysNoteMember" name="MarchLabrysNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_MarchLabrysSPAMember" name="MarchLabrysSPAMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ConvertibleNoteMember" name="ConvertibleNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FirstTwentyTwentySixFutureReceiptsFinancingAgreementMember" name="FirstTwentyTwentySixFutureReceiptsFinancingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_SecondTwentyTwentySixFutureReceiptsFinancingAgreementMember" name="SecondTwentyTwentySixFutureReceiptsFinancingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NonConvertiblePromissoryNotesMember" name="NonConvertiblePromissoryNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CEOLoanMember" name="CEOLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CEOWarrantsMember" name="CEOWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_A2024TermNoteMember" name="A2024TermNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnaffiliatedInvestorLoanMember" name="UnaffiliatedInvestorLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnaffiliatedInvestorWarrantsMember" name="UnaffiliatedInvestorWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FirstAugust2025NoteMember" name="FirstAugust2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_SecondAugust2025NoteMember" name="SecondAugust2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ThirdAugust2025NotesMember" name="ThirdAugust2025NotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ThirdAugust2025NoteMember" name="ThirdAugust2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_November2025NoteMember" name="November2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FirstDecember2025NoteMember" name="FirstDecember2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_SecondDecember2025NoteMember" name="SecondDecember2025NoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_August2025FutureReceiptsFinancingAgreementsMember" name="August2025FutureReceiptsFinancingAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LibertasFinancingAgreementMember" name="LibertasFinancingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AugustWarrantsMember" name="AugustWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_September2025FutureReceiptsFinancingAgreementsMember" name="September2025FutureReceiptsFinancingAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_July2025NotesMember" name="July2025NotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_JulyWarrantsMember" name="JulyWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ERCClaimAndRiskParticipationAgreementMember" name="ERCClaimAndRiskParticipationAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_A1861AcquisitionLLCMember" name="A1861AcquisitionLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ERCClaimMember" name="ERCClaimMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwentyTwentyFourCollateralizedLoanAgreementMember" name="TwentyTwentyFourCollateralizedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwentyTwentyFiveCollateralizedLoanAgreementMember" name="TwentyTwentyFiveCollateralizedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_WestParkCapitalIncMember" name="WestParkCapitalIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AtTheMarketOfferingMember" name="AtTheMarketOfferingMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_StockPurchaseAgreementMember" name="StockPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ThinkEquityLLCMember" name="ThinkEquityLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsTwentyFiveDirectorsPlanMember" name="TwoThousandsTwentyFiveDirectorsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AmendedTwoThousandsTwentyTwoDirectorsPlanMember" name="AmendedTwoThousandsTwentyTwoDirectorsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsTwentyTwoDirectorsPlanMember" name="TwoThousandsTwentyTwoDirectorsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsTwentyFivePlanMember" name="TwoThousandsTwentyFivePlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsTwentyTwoPlanMember" name="TwoThousandsTwentyTwoPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LinebackerLicenseAgreementsMember" name="LinebackerLicenseAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NewDrugApplicationMember" name="NewDrugApplicationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_BESmartLicenseAgreementsMember" name="BESmartLicenseAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CPMMember" name="CPMMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OldBridgeNewJerseyMember" name="OldBridgeNewJerseyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NewYorkSecondFloorLeaseMember" name="NewYorkSecondFloorLeaseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NewYorkFirstFloorLeaseMember" name="NewYorkFirstFloorLeaseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DiagnosticServicesSegmentMember" name="DiagnosticServicesSegmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ConsumerProductsSegmentMember" name="ConsumerProductsSegmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnallocatedCorporateMember" name="UnallocatedCorporateMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CommonStockPurchaseWarrantsMember" name="CommonStockPurchaseWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ConsultingServicesMember" name="ConsultingServicesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FormerChiefOperatingOfficerMember" name="FormerChiefOperatingOfficerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PMINoteMember" name="PMINoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CapitalLeasesMember" name="CapitalLeasesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CurrentAndAccruedPayablesMember" name="CurrentAndAccruedPayablesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ExistingLoanFromAffiliatesMember" name="ExistingLoanFromAffiliatesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AccruedInterestMember" name="AccruedInterestMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PDXMember" name="PDXMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_JulyTwoThousandTwentyFiveNotesMember" name="JulyTwoThousandTwentyFiveNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AugustFutureFinancingAgreementMember" name="AugustFutureFinancingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TreasuryStockCommonSharesCollateral" name="TreasuryStockCommonSharesCollateral" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CommonStockSharesIssuedNotDisclosed" name="CommonStockSharesIssuedNotDisclosed" nillable="true" xbrli:periodType="instant" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_GainLossOnIssuanceOfDebt" name="GainLossOnIssuanceOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_StockIssuedDuringPeriodValueIssuanceOfCommonSharesAndWarrantsInConjunctionWithDebtIssuance" name="StockIssuedDuringPeriodValueIssuanceOfCommonSharesAndWarrantsInConjunctionWithDebtIssuance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_StockIssuedDuringPeriodSharesIssuanceOfCommonSharesAndWarrantsInConjunctionWithDebtIssuance" name="StockIssuedDuringPeriodSharesIssuanceOfCommonSharesAndWarrantsInConjunctionWithDebtIssuance" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PrepaidShareBasedCompensationExpense" name="PrepaidShareBasedCompensationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_IncreaseDecreaseInAccruedDiagnosticServices" name="IncreaseDecreaseInAccruedDiagnosticServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_StockIssuedAsCommitmentFeeForFutureFinancing" name="StockIssuedAsCommitmentFeeForFutureFinancing" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_IssuanceOfCommonStockToConvertOutstandingDebt" name="IssuanceOfCommonStockToConvertOutstandingDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DeconsolidationPolicyPolicyTextBlock" name="DeconsolidationPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_RecentlyIssuedAccountingStandardsNotYetAdoptedPolicyTextBlock" name="RecentlyIssuedAccountingStandardsNotYetAdoptedPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ScheduleOfWarrantActivityTableTextBlock" name="ScheduleOfWarrantActivityTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NumberOfLabEntitiesFiledForChapter11Reorganization" name="NumberOfLabEntitiesFiledForChapter11Reorganization" nillable="true" xbrli:periodType="duration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NumberOfLicensedCompounds" name="NumberOfLicensedCompounds" nillable="true" xbrli:periodType="duration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NumberOfInhibitors" name="NumberOfInhibitors" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PaymentsForAssetAcquisition" name="PaymentsForAssetAcquisition" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AssetAcquisitionConsiderationTransferredLiabilityPayoff" name="AssetAcquisitionConsiderationTransferredLiabilityPayoff" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AcquisitionConsiderationTransferredPromissoryNotePayoff" name="AcquisitionConsiderationTransferredPromissoryNotePayoff" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AssetAcquisitionSharesIssuedAndIssuableValuePerShare" name="AssetAcquisitionSharesIssuedAndIssuableValuePerShare" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PurchaseAgreementRoyaltyPercent" name="PurchaseAgreementRoyaltyPercent" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AssetAcquisitionTransactionCosts" name="AssetAcquisitionTransactionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentNumberOfPeriodicPayments" name="DebtInstrumentNumberOfPeriodicPayments" nillable="true" xbrli:periodType="duration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentConvertibleBeneficialOwnershipLimitationPercentage" name="DebtInstrumentConvertibleBeneficialOwnershipLimitationPercentage" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentConvertiblePeriodFromIssuanceDate" name="DebtInstrumentConvertiblePeriodFromIssuanceDate" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentBrokerageFees" name="DebtInstrumentBrokerageFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentOutstandingBalance" name="DebtInstrumentOutstandingBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentNumberOfNonConvertiblePromissoryNotesIssued" name="DebtInstrumentNumberOfNonConvertiblePromissoryNotesIssued" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentNumberOfAgreementsEnteredInto" name="DebtInstrumentNumberOfAgreementsEnteredInto" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentPeriodicPaymentDelayFromIssuanceDatePeriod" name="DebtInstrumentPeriodicPaymentDelayFromIssuanceDatePeriod" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentOriginalIssueDiscountPercent" name="DebtInstrumentOriginalIssueDiscountPercent" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentConvertibleNoteConversionWaitingPeriod" name="DebtInstrumentConvertibleNoteConversionWaitingPeriod" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtConversionConvertedInstrumentAccruedInterestAmount" name="DebtConversionConvertedInstrumentAccruedInterestAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionCreditReceivable" name="EmployeeRetentionCreditReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ProceedsFromSaleOfCompanyRightsTitleAndInterestToEmployeeRetentionCredit" name="ProceedsFromSaleOfCompanyRightsTitleAndInterestToEmployeeRetentionCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PaymentsOfIssuanceCostsForSaleOfCompanyRightsTitleAndInterestToEmployeeRetentionCredit" name="PaymentsOfIssuanceCostsForSaleOfCompanyRightsTitleAndInterestToEmployeeRetentionCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionCreditReceivableAmountTransferred" name="EmployeeRetentionCreditReceivableAmountTransferred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionCreditClaimApprovalPeriod" name="EmployeeRetentionCreditClaimApprovalPeriod" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionCreditPercentageOfImpairedAmountAllowedToBePutBackToTheCompany" name="EmployeeRetentionCreditPercentageOfImpairedAmountAllowedToBePutBackToTheCompany" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionCreditInterestRatePercentageOnImpairedAmountAllowedToBePutBackToTheCompany" name="EmployeeRetentionCreditInterestRatePercentageOnImpairedAmountAllowedToBePutBackToTheCompany" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ProceedsFromIncomeTaxRefundsPortionPassedThroughToBuyer" name="ProceedsFromIncomeTaxRefundsPortionPassedThroughToBuyer" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DeferredTaxLiabilitiesAmountOffsetFromIncomeTaxRefunds" name="DeferredTaxLiabilitiesAmountOffsetFromIncomeTaxRefunds" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentCollateralAmountShares" name="DebtInstrumentCollateralAmountShares" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DebtInstrumentArrangerFeePercentage" name="DebtInstrumentArrangerFeePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice1" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingGrantedWeightedAverageExercisePrice1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingGrantedWeightedAverageExercisePrice1" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsVestedAndExpectedToVestExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsVestedAndExpectedToVestExercisableNumber" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsVestedAndExercisableWeightedAverageExercisePrice1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsVestedAndExercisableWeightedAverageExercisePrice1" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_WeightedAverageRemainingContractualLifeWarrantsVestedAndExercisable" name="WeightedAverageRemainingContractualLifeWarrantsVestedAndExercisable" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_SaleOfStockAggregateInitialOfferingPriceMaximum" name="SaleOfStockAggregateInitialOfferingPriceMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_SaleOfStockCommissionPercentage" name="SaleOfStockCommissionPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CommonStockIncreaseDecreaseInCapitalSharesReservedForFutureIssuance" name="CommonStockIncreaseDecreaseInCapitalSharesReservedForFutureIssuance" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UpfrontLicenseFee" name="UpfrontLicenseFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LicenseAgreementTerm" name="LicenseAgreementTerm" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AdditionalPaymentOfFee" name="AdditionalPaymentOfFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LicenseOrRoyaltyNetRevenuePercentage" name="LicenseOrRoyaltyNetRevenuePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CollaborativeArrangementEstimatedAnnualProcedures" name="CollaborativeArrangementEstimatedAnnualProcedures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CollaborativeArrangementEstimatedMarketOpportunityValue" name="CollaborativeArrangementEstimatedMarketOpportunityValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FinanceLeaseCost" name="FinanceLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LesseeOperatingLeaseMonthlyBaseRent" name="LesseeOperatingLeaseMonthlyBaseRent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OperatingLeaseSurrenderSettlementAmountMonthly" name="OperatingLeaseSurrenderSettlementAmountMonthly" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OperatingLeaseNumberOfSurrenderSettlementInstallments" name="OperatingLeaseNumberOfSurrenderSettlementInstallments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LesseeFinanceLeaseInterestRate" name="LesseeFinanceLeaseInterestRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NoncashOrPartNoncashDivestitureCapitalExpendituresAvoided" name="NoncashOrPartNoncashDivestitureCapitalExpendituresAvoided" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NoncashOrPartNoncashDivestitureEmployeeAnnualOverheadTransferred" name="NoncashOrPartNoncashDivestitureEmployeeAnnualOverheadTransferred" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ReorganizationsTable" name="ReorganizationsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="PRPH_WarrantLiabilityFairValueDisclosure" name="WarrantLiabilityFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OriginationFee" name="OriginationFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearThree" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_InducementOptionAwardMember" name="InducementOptionAwardMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_A2024CollateralizedLoanAgreementMember" name="A2024CollateralizedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_A2025CollateralizedLoanAgreementMember" name="A2025CollateralizedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EmployeeRetentionTaxCreditIncome" name="EmployeeRetentionTaxCreditIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_ScheduleOfShareBasedPaymentAwardFairValueOfWarrantsValuationAssumptionsTableTextBlock" name="ScheduleOfShareBasedPaymentAwardFairValueOfWarrantsValuationAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_EquivirLicenserAgreementsMember" name="EquivirLicenserAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NoncashEmployeeRetentionTaxCreditIncome" name="NoncashEmployeeRetentionTaxCreditIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_InventoryValuationReserve" name="InventoryValuationReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OperatingLeaseLiabilityDecreaseFromLeaseTermination" name="OperatingLeaseLiabilityDecreaseFromLeaseTermination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OperatingLeaseRightOfUseAssetDecreaseFromLeaseTermination" name="OperatingLeaseRightOfUseAssetDecreaseFromLeaseTermination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationFinanceLeaseRightOfUseAssetAfterAccumulatedAmortization" name="DisposalGroupIncludingDiscontinuedOperationFinanceLeaseRightOfUseAssetAfterAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationFinanceLeaseRightOfUseAssetAccumulatedAmortization" name="DisposalGroupIncludingDiscontinuedOperationFinanceLeaseRightOfUseAssetAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CorporateStockMember" name="CorporateStockMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_AmendedTwoThousandsTenDirectorsPlanMember" name="AmendedTwoThousandsTenDirectorsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsTenPlanMember" name="TwoThousandsTenPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_TwoThousandsEighteenStockIncentivePlanMember" name="TwoThousandsEighteenStockIncentivePlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_OperatingLeaseNonRefundableSecurityDepositWriteoff" name="OperatingLeaseNonRefundableSecurityDepositWriteoff" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnsecuredPromissoryNotesNoncurrent" name="UnsecuredPromissoryNotesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnsecuredPromissoryNotesMember" name="UnsecuredPromissoryNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_UnsecuredLongTermDebtMember" name="UnsecuredLongTermDebtMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_CEOOptionsMember" name="CEOOptionsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_BESmartLicenseAgreementMember" name="BESmartLicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NumberOfAncestrySingleNucleotidePolymorphismsBasedTestsEquivalentDescription" name="NumberOfAncestrySingleNucleotidePolymorphismsBasedTestsEquivalentDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_NumberOfFoodDrugAndMassRetailStoresDistributedIn" name="NumberOfFoodDrugAndMassRetailStoresDistributedIn" nillable="true" xbrli:periodType="duration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_PharmalozManufacturingIncAndPharmalozRealEstateHoldingsIncMember" name="PharmalozManufacturingIncAndPharmalozRealEstateHoldingsIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpense" name="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationRestrictedCash" name="DisposalGroupIncludingDiscontinuedOperationRestrictedCash" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationNotesPayableCurrent" name="DisposalGroupIncludingDiscontinuedOperationNotesPayableCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationFinanceLeaseLiabilityCurrent" name="DisposalGroupIncludingDiscontinuedOperationFinanceLeaseLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationLongTermDebtNoncurrent" name="DisposalGroupIncludingDiscontinuedOperationLongTermDebtNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_DisposalGroupIncludingDiscontinuedOperationUnamortizedDiscountNoncurrent" name="DisposalGroupIncludingDiscontinuedOperationUnamortizedDiscountNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PRPH_LoanAgreementsMember" name="LoanAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
