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<PERIOD>20040602
<FILING-DATE>20040604
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Binder Gordon M
<CIK>0001291957
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-50768
<FILM-NUMBER>04850678
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>(310) 473-8440
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>11111 SANTA MONICA BOULEVARD
<STREET2>SUITE 1850
<CITY>LOS ANGELES
<STATE>CA
<ZIP>90025
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<ISSUER>
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<CONFORMED-NAME>ACADIA PHARMACEUTICALS INC
<CIK>0001070494
<ASSIGNED-SIC>2834
<IRS-NUMBER>061376651
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
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<BUSINESS-ADDRESS>
<STREET1>3911 SORRENTO VALLEY BLVD
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121
<PHONE>858-558-2871
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<STREET1>3911 SORRENTO VALLEY BLVD
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121
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<SEQUENCE>1
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                    <value>I</value>
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    <footnotes>
        <footnote id="F1">N/A - Securities were issued upon conversion of Series F Convertible Preferred Stock.</footnote>
        <footnote id="F2">By Coastview Bioscience Partners I, L.P.</footnote>
        <footnote id="F3">The reporting person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of securities for purposes of Section 16 or any other purpose.</footnote>
        <footnote id="F4">By Coastview Strategic Fund I, L.P.</footnote>
        <footnote id="F5">By Coastview Advisors Fund I, L.P.</footnote>
        <footnote id="F6">1-for-1.</footnote>
        <footnote id="F7">Immed.</footnote>
        <footnote id="F8">N/A</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Gordon Binder</signatureName>
        <signatureDate>2004-06-02</signatureDate>
    </ownerSignature>
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</SUBMISSION>
