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Japan’s Eisai Says It Still Has Patent Protection For Aricept Despite Court Action (Japan)

This article was originally published in PharmAsia News

Executive Summary

Japan's Eisai says a U.S. district court ruling will have no impact on the validity of its patent for Aricept (donepezil hydrochloride) for treating Alzheimer's disease. The court in New Jersey threw out Eisai's suit against Mutual Pharmaceutical for seeking U.S. FDA approval for an Aricept generic. Eisai said the ruling was based on procedural grounds and it is still free to sue Mutual to defend a patent not set to expire until 2010. (Click here for more - may require a subscription

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