Chattem's sale to French

Chattanooga-based Chattem has been acquired by a French company, Sanofi-Aventis, which sells Allegra, among other drugs. Chattanooga will now become the U.S. headquarters of Sanofi. The TFP reports. Chattem (Selsun Blue, etc.) will become Sanofi's marketing expert. A Dallas-based law firm announced Dec. 23 it is exploring a class-action lawsuit.