Sanofi-Aventis Sues Synthon Over Generic Ambien

Law360, New York (February 6, 2007, 12:00 AM EST) -- French pharmaceutical giant Sanofi-Aventis has sued its Dutch rival over alleged infringement of a patent for its blockbuster sleeping pill.

The leading drug maker claims Synthon Pharmaceuticals filed a new drug application with the U.S. drug agency for a generic version of Ambien, in direct violation of its patent.

In the complaint filed Monday in the North Carolina federal court, lawyers for Sanofi-Aventis called for a permanent injunction on Synthon manufacturing or marketing its version in the U.S.

It also seeks a moratorium on approval for...
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