<SUBMISSION>
<ACCESSION-NUMBER>0001209191-18-004444
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20180118
<FILING-DATE>20180119
<DATE-OF-FILING-DATE-CHANGE>20180119
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>FROST PHILLIP MD ET AL
<CIK>0000898860
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-32849
<FILM-NUMBER>18535567
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>4400 BISCAYNE BLVD
<CITY>MIAMI
<STATE>FL
<ZIP>33137-3227
</MAIL-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Frost Gamma Investments Trust
<CIK>0001380896
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-32849
<FILM-NUMBER>18535566
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>4400 BISCAYNE BLVD
<CITY>MIAMI
<STATE>FL
<ZIP>33137
<PHONE>305-575-6000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>4400 BISCAYNE BLVD
<CITY>MIAMI
<STATE>FL
<ZIP>33137
</MAIL-ADDRESS>
<FORMER-NAME>
<FORMER-CONFORMED-NAME>Frost Gamma Investment Trust
<DATE-CHANGED>20061113
</FORMER-NAME>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Frost Nevada Investments Trust
<CIK>0001464124
<STATE-OF-INCORPORATION>FL
<FISCAL-YEAR-END>1231
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-32849
<FILM-NUMBER>18535565
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>4400 BISCAYNE BOULEVARD
<STREET2>15TH FLOOR
<CITY>MIAMI
<STATE>FL
<ZIP>33137
<PHONE>305-575-6000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>4400 BISCAYNE BOULEVARD
<STREET2>15TH FLOOR
<CITY>MIAMI
<STATE>FL
<ZIP>33137
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Castle Brands Inc
<CIK>0001311538
<ASSIGNED-SIC>2080
<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>FL
<FISCAL-YEAR-END>0331
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>122 EAST 42ND STREET
<STREET2>SUITE 4700
<CITY>NEW YORK
<STATE>NY
<ZIP>10168
<PHONE>646-356-0200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>122 EAST 42ND STREET
<STREET2>SUITE 4700
<CITY>NEW YORK
<STATE>NY
<ZIP>10168
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-01-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001311538</issuerCik>
        <issuerName>Castle Brands Inc</issuerName>
        <issuerTradingSymbol>ROX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000898860</rptOwnerCik>
            <rptOwnerName>FROST PHILLIP MD ET AL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4400 BISCAYNE BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33137</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
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    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001380896</rptOwnerCik>
            <rptOwnerName>Frost Gamma Investments Trust</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4400 BISCAYNE BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33137</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001464124</rptOwnerCik>
            <rptOwnerName>Frost Nevada Investments Trust</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4400 BISCAYNE BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33137</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-18</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>558179</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.90</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>43900719</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Held by Frost Gamma Investments Trust</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>779776</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9370790</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Held by Frost Nevada Investments Trust</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>5% Subordinated Convertible Note due 2018</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.90</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-01-18</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionTotalValue>
                    <value>500000.00</value>
                </transactionTotalValue>
                <transactionPricePerShare>
                    <value>500000.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2013-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2018-12-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>558179</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Held by Frost Gamma Investments Trust</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The securities are held by Frost Gamma Investments Trust, of which Phillip Frost M.D., is the trustee. Frost Gamma L.P. is the sole and exclusive beneficiary of Frost Gamma Investments Trust. Dr. Frost is one of two limited partners of Frost Gamma L.P. The general partner of Frost Gamma L.P. is Frost Gamma, Inc., and the sole shareholder of Frost Gamma, Inc. is Frost-Nevada Corporation. Dr. Frost is also the sole shareholder of Frost-Nevada Corporation. The reporting person disclaims beneficial ownership of these securities, except to the extent of any pecuniary interest therein and this report shall not be deemed an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F2">These securities are held by Frost Nevada Investments Trust, of which the Reporting Person is the trustee and Frost-Nevada, L.P. is the sole and exclusive beneficiary. The Reporting Person is one of five limited partners of Frost-Nevada, L.P. and the sole shareholder of Frost-Nevada Corporation, the sole general partner of Frost-Nevada, L.P.</footnote>
        <footnote id="F3">Based on the initial principal amount of the 5% Subordinated Convertible Promissory Note and accrued but unpaid interest thereon as of the date of conversion.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Phillip Frost, M.D.</signatureName>
        <signatureDate>2018-01-19</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>FROST GAMMA INVESTMENTS TRUST by: /s/ Phillip Frost, MD, Trustee</signatureName>
        <signatureDate>2018-01-19</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>FROST NEVADA INVESTMENTS TRUST by: /s/ Phillip Frost, MD, Trustee</signatureName>
        <signatureDate>2018-01-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-99 DOCUMENT
<TEXT>
<HTML>
<HEAD>
</HEAD>
<BODY>
<PRE>
JOINT FILER INFORMATION

NAME:                      Frost Gamma Investments Trust
ADDRESS:                   4400 Biscayne Blvd
                           Miami, FL 33137

Designated Filer:          Phillip Frost, M.D.

Issuer and Ticker Symbol:  Castle Brands Inc. (ROX)

Date of Event Requiring
Statement:                 January 18, 2018

                           FROST GAMMA INVESTMENTS TRUST

                           By:/s/ Phillip Frost, M.D.
                           Phillip Frost, M.D., Trustee


NAME:                      Frost Nevada Investments Trust
ADDRESS:                   4400 Biscayne Blvd
                           Miami, FL 33137

Designated Filer:          Phillip Frost, M.D.

Issuer and Ticker Symbol:  Castle Brands Inc. (ROX)

Date of Event Requiring
Statement:                 January 18, 2018

                           FROST NEVADA INVESTMENTS TRUST

                           By:/s/ Phillip Frost, M.D.
                           Phillip Frost, M.D., Trustee

</PRE>
</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
