Shire Sues Impax Again Over New Adderall ANDAs

Law360, New York (January 16, 2005, 12:00 AM EST) -- U.K. drug maker Shire Pharmaceuticals has filed a second lawsuit against U.S. generics maker Impax Labs based on an abbreviated new drug application for another dosage of best-selling attention-deficit drug Adderall XL.

Shire, which has already sued Impax over its Paragraph IV notice letter for a 30 mg generic version of Adderall XR, has filed a second complaint based on an additional Paragraph IV notice letter for a generic version of the 5 mg, 10 mg, 15 mg, 20 mg and 25 mg strengths of the...
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