The defendants named in the lawsuits include Barr Laboratories, Cobalt Laboratories, Lupin, Orchid Chemicals & Pharmaceuticals, Teva Pharmaceuticals USA, Upsher-Smith Laboratories, Wockhardt and related companies and subsidiaries thereof.
The Namenda patent will expire in April 2010. Forest has applied for patent term extension which, if granted, would extend the patent until September 2013.