Allergan Litigates Over Eye Drop Patent

Law360, New York (May 10, 2007, 12:00 AM EDT) -- Allergan Inc. disclosed Wednesday that it has sued generic pharmaceutical company Exela PharmSci Inc. for allegedly infringing its patent for an eye drop medication used to treat glaucoma.

In a filing with the U.S. Securities and Exchange Commission, Allergan said it brought the lawsuit in March after learning Exela had filed an Abbreviated New Drug Application for a generic version of the glaucoma medication Aplhagan, otherwise known as 0.15% brimonidine tartrate ophthalmic solution.

Then, in April, Allergan filed an amended complaint with the U.S. District Court...
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