EXHIBIT 32

CERTIFICATION 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 Annual Report of AtheroGenics, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Russell M. Medford, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of 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) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ RUSSELL M. MEDFORD  

Russell M. Medford 

President and Chief Executive Officer  

Date: March 7, 2007

EXHIBIT 32

CERTIFICATION 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 Annual Report of AtheroGenics, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark P. Colonnese, Executive Vice President, Commercial Operations and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of 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) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ MARK P. COLONNESE  

Mark P. Colonnese 

Executive Vice President, Commercial Operations
and Chief Financial Officer

Date: March 7, 2007