When does the lipitor patent expire?

Answer The patent on Lipitor (atorvastatin calcium) expires in June 2011. Lipitor is a leading cholesterol-cutting drug. Its maker is Pfizer Inc., one of the world's largest pharmaceutical companies. T... Read More »

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When does the Zocor patent expire?

The patent for Zocor, or simvastatin, expired on June 23, 2006. Zocor is a cholesterol-lowering drug made by pharmaceutical company Merck & Co., Inc. Lipitor, a drug that competes with Zocor, lose... Read More »

When does the Imitrex patent expire?

Imitrex (sumatriptan succinate) is a migraine relief medicine developed by GlaxoSmithKline (GSK). It is taken orally or through the nasal cavities. The Imitrex patent expired in February 2009, afte... Read More »

When does the patent expire for seroquel?

AstraZeneca manufactures Seroquel, a drug used to treat bipolar disorder and schizophrenia. The patent for Seroquel expires in September 2011. In December 2008, Teva Pharmaceuticals received tentat... Read More »

When does Zoloft's patent expire?

The patent for Zoloft, or sertraline HCI, expired on June 30, 2006. Zoloft is a leading antidepressant drug that was first released in the U.S. market in 1987. It is made by Pfizer Inc., one of t... Read More »