Just days before its blockbuster merger announcement with Actavis, drug maker Forest Laboratories Inc. filed a lawsuit in federal district court in Delaware accusing several generic pharmaceutical manufacturers of infringing patents related to its exclusive treatment for Alzheimer’s disease.
The complaint, filed by Quinn Emanuel Urquhart & Sullivan on Feb. 14, is part of an effort by Forest Labs to protect its branded Alzheimer’s drug, Namenda. The suit targets Canada’s Apotex Inc.; India’s Cadila Healthcare; and New Jersey’s Par Pharamceutical Inc., among others.