WASHINGTON, May 19 (UPI) -- The U.S. Food and Drug Administration announced the voluntarily recall of some lots of the antibiotic Solodyn due to a safety risk.

The FDA said the Medicis Pharmaceutical Corp. (NYSE:MRX) voluntarily recalled Solodyn (minocycline) extended release tablets in lot numbers B080037 and B080038 after it was found one bottle in lot B080037 contained Azasan (azathioprine) tablets instead of Solodyn tablets. Solodyn is manufactured by AAIPharma Inc. under contract with Medicis.

Officials said Azasan is an immuno-suppressive agent used in transplant patients to prevent kidney rejection and for the treatment of rheumatoid arthritis. Taking Azasan instead of Solodyn presents a safety risk to patients, particularly elderly people, Medicis said.

Inquiries related to the recall should be addressed to 888-656-6381. For any medical information inquiries or to report an adverse event related to the recall, contact Medicis at 800-900-6389.

Solodyn is a registered trademark of the Medicis Pharmaceutical Corp. Azasan is a registered trademark of AAIPharma Inc.