<SEC-DOCUMENT>0001209191-21-026939.txt : 20210416
<SEC-HEADER>0001209191-21-026939.hdr.sgml : 20210416
<ACCEPTANCE-DATETIME>20210416160229
ACCESSION NUMBER:		0001209191-21-026939
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210415
FILED AS OF DATE:		20210416
DATE AS OF CHANGE:		20210416

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mercier Johanna
		CENTRAL INDEX KEY:			0001782135

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22705
		FILM NUMBER:		21831454

	MAIL ADDRESS:	
		STREET 1:		333 LAKESIDE DRIVE
		CITY:			FOSTER CITY
		STATE:			CA
		ZIP:			94404

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEUROCRINE BIOSCIENCES INC
		CENTRAL INDEX KEY:			0000914475
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				330525145
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12780 EL CAMINO REAL
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
		BUSINESS PHONE:		(858) 617-7600

	MAIL ADDRESS:	
		STREET 1:		12780 EL CAMINO REAL
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
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<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-04-15</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000914475</issuerCik>
        <issuerName>NEUROCRINE BIOSCIENCES INC</issuerName>
        <issuerTradingSymbol>NBIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001782135</rptOwnerCik>
            <rptOwnerName>Mercier Johanna</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12780 EL CAMINO REAL</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>No securities are beneficially owned.</remarks>

    <ownerSignature>
        <signatureName>/s/ Darin Lippoldt, Attorney-in-Fact</signatureName>
        <signatureDate>2021-04-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-24 DOCUMENT
<TEXT>
<HTML>
<HEAD>
</HEAD>
<BODY>
<PRE>
LIMITED POWER OF ATTORNEY SECURITIES LAW COMPLIANCE

The undersigned, as a director of Neurocrine Biosciences, Inc. (the
"Corporation"), hereby constitutes and appoints, jointly and severally Kevin C.
Gorman, Matthew Abernethy, and Darin Lippoldt, each of them, the undersigned's
true and lawful attorney-in-fact and agent, each with the power of substitution
for him in any and all capacities to complete and execute such Forms 144,
advisable pursuant to Rule 144 promulgated under the Securities Act of 1933 (as
amended) and Forms 3, 4, and 5 advisable pursuant to section 16 of the
Securities Exchange Act of 1934, and other forms as such attorney shall in his
discretion determine to be required by the rules and regulations promulgated
thereunder, or any successor laws and regulations, as a consequence of the
undersigned's ownership, acquisition or disposition of securities of the
Corporation, and to do all acts necessary in order to file such forms with the
Securities and Exchange Commission, any securities exchange or national
association, the Corporation and such other person or agency as the attorney
shall deem appropriate. The undersigned hereby ratifies and confirms all that
said attorneys-in-fact and agents shall do or cause to be done by virtue hereof.

This Limited Power of Attorney is executed at San Diego, California, as of the
date set forth below.

/s/ Johanna Mercier
Johanna Mercier
Date: April 15, 2021

</PRE>
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</TEXT>
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