(BUSINESS WIRE)--Pfizer Inc said today that it is disappointed by the Canadian Federal Court’s decision declaring invalid its patent covering amlodipine besylate, the active ingredient in Norvasc®, and that the company will appeal the decision to the Federal Court of Appeal of Canada. Pfizer's amlodipine besylate patent - Canadian Patent No. 1,321,393 - expires in 2010. The civil action was brought by Ratiopharm.
Pfizer remains committed to protecting its intellectual property rights and to ensuring the long-term viability of its research and development programs.
The company noted that legal challenges to this patent in Canada by other generic manufacturers are still pending.
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Chris Loder, 212-733-7897
Suzanne Harnett, 212-733-8009