Sanofi Ambien patent
Executive Summary
Sanofi will list Ambien patent covering modified-release version of insomnia agent in FDA's "Orange Book," company says. Patent for zolpidem MR (no. 6,514,531) would run to 2019; Ambien exclusivity currently expires in 2006. Sanofi plans to file in 2004 for FDA approval (1"The Pink Sheet" Feb. 24, p. 15)...