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See the DrugPatentWatch profile for lipitor
When did the FDA approve Lipitor? The FDA first approved Lipitor on December 17, 1996, for lowering LDL cholesterol and reducing cardiovascular risk in adults. When did Lipitor's primary patent expire? Pfizer's main compound patent on atorvastatin, the active ingredient in Lipitor, expired on March 24, 2010. A pediatric exclusivity extension pushed the effective end of U.S. market exclusivity to November 30, 2011. Why are companies challenging this patent? Generic manufacturers challenged the patent in court well before 2010. They argued that the doppler radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar radar
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