Why Allergan filed an infringement suit on Lupin?
Lumigan is Allergan’s second-biggest drug. Not only Lupin Ltd making attempts to infringe but Novartis AG’s Sandoz unit, Actavis Plc, Hi-Tech Pharmacal Co. and would also infringe Allergan’s patents on the medicine. Allergan owns five patents that are ′504, ′353, ′118, ′605, and ′479 patents, which are all listed in the FDA's Approved Drug Products with Therapeutic Equivalence [...]





