J&J Challenged Over Schizophrenia Drug Patent

Law360, New York (October 17, 2005, 12:00 AM EDT) -- Barr Laboratories Inc. has challenged Johnson & Johnson’s patent for a schizophrenia drug, triggering a lawsuit from the health care giant over the widely prescribed antipsychotic.

J&J filed the suit in early October after Barr informed the company of its Abbreviated New Drug Application (ANDA) to the U.S. Food and Drug Administration. The application included a Paragraph IV certification challenging the validity of J&J’s patent, compelling Barr to inform J&J of its intentions.

The suit was filed against the New Jersey-based generic drug maker by J&J’s...
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