Dec 12, 2011


The pharmaceutical giant Pfizer has had a patent on a drug called "Atorvastatin" since 1997, which they sold under the brand-name of Lipitor. The drug soon became the most sold drug of all time (about 11 billion dollars a year) and thus, a major source of revenue for the company. The patent expired on November 30 in 2011, thus paving the way for generic versions of the drug to now be made available.

The drug is shown to benefit strokes, heart attacks, and even plaque. Its principal effect is to impact the quantities of which chemical?

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