Grassley to the FDA: Are Statins Really Safe?

Cholesterol-lowering drugs have been the most successful medicines in history. Last year, they racked up $33 billion in sales around the world. Just one drug, Pfizer's (PFE) Lipitor, earned $13.6 billion. But there are serious questions about whether these drugs are being overused and whether they are as safe as most people—and doctors—believe. And now Congress is starting to ask those questions, too.

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