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Pfizer Claims Lilly, GSK, Bayer, ICOS Violate Viagra Patent

By Kim Coghill


Thursday, October 24, 2002
Lilly ICOS LLC said it intends to "vigorously defend itself" against a claim by Pfizer Inc. that its erectile dysfunction candidate, Cialis, infringes on Pfizer's patent that protects the blockbuster drug, Viagra. (BioWorld Today)

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