(Reuters) - A U.S. judge on Monday invalidated patents on Allergan Plc's dry-eye medicine Restasis on grounds that the patents cover ideas that are obvious, sending shares of the pharmaceutical ...

Restasis (cyclosporine ophthalmic emulsion) is a prescription drug that’s used to treat dry eye syndrome. The drug comes as an emulsion (oily liquid). You usually apply 1 drop into each affected eye ...

Allergan ( AGN) stock tanked Monday after a federal judge invalidated patents covering eye-drug Restasis, in a dispute pitting Allergan against a group of generic ...

Oct 16 (Reuters) - A U.S. judge on Monday invalidated patents issued to Allergan Plc on its dry eye medicine Restasis, saying they covered ideas that were too obvious to protect. Judge William Bryson ...