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<MAIL-ADDRESS>
<STREET1>ALEXANDRIA REAL ESTATE EQUITIES INC
<STREET2>135 N LOS ROBLES AVE SUITE 250
<CITY>PASADENA
<STATE>CA
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<CONFORMED-NAME>ACADIA PHARMACEUTICALS INC
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<STATE-OF-INCORPORATION>DE
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<STREET1>3911 SORRENTO VALLEY BLVD
<CITY>SAN DIEGO
<STATE>CA
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<CITY>SAN DIEGO
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<ZIP>92121
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            <rptOwnerStreet1>315 POST ROAD WEST</rptOwnerStreet1>
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                    <value>D</value>
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                <footnoteId id="F6"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
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                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
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        </derivativeTransaction>
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    <footnotes>
        <footnote id="F1">N/A - Securities were issued upon conversion of convertible preferred stock.</footnote>
        <footnote id="F2">Securities held of record by Oxford Bioscience Partners IV L.P. (&quot;OBP IV&quot;).  Dr. Walton, as an individual general partner of OBP Management IV L.P., the sole general partner of OBP IV may be deemed to beneficially own the shares held of record by OBP IV.  Dr. Walton disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">Securities held of record by mRNA Fund II L.P. (&quot;mRNA&quot;).  Dr. Walton, as an individual general partner of OBP Management IV L.P., the sole general partner of mRNA may be deemed to beneficially own the shares held of record by mRNA.  Dr. Walton disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F4">1-for-1.</footnote>
        <footnote id="F5">Immediate</footnote>
        <footnote id="F6">N/A</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Alan G. Walton</signatureName>
        <signatureDate>2004-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>

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</TEXT>
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</SUBMISSION>
