Neurocrine Biosciences (NBIX) 10-Q 2006 Q3 Quarterly report

EXHIBIT 32

CERTIFICATIONS OF
CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the Quarterly Report of Neurocrine Biosciences, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gary A. Lyons, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)	The Report fully complies with the requirements of Section 13(a) or 15(d), of the Securities Exchange Act of 1934; and
(2)	That information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

November 8, 2006	By:	/s/ Gary A. Lyons
		Name:	Gary A. Lyons
		Title:	President and Chief Executive Officer

     In connection with the Quarterly Report of Neurocrine Biosciences, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Timothy P. Coughlin, Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)	The Report fully complies with the requirements of Section 13(a) or 15(d), of the Securities Exchange Act of 1934; and
(2)	That information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

November 8, 2006	By:	/s/ Timothy P. Coughlin
		Name:	Timothy P. Coughlin
		Title:	Vice President and Chief Financial Officer