Allergan enters patent battle over generic version of brimonidine tartrate solution

September 15, 2004

Irvine, CA-Allergan Inc. said it has filed a lawsuit against Alcon Laboratories Inc. claiming that the Fort Worth, TX company infringed upon Allergan's patents for brimonidine tartrate ophthalmic solution 0.15% to manufacture a generic alternative to its Alphagan P drops.