With the bewildering slew of analgesics lining pharmacy shelves, it's hard to believe there are only five active ingredients out there: aspirin, acetaminophen, ibuprofen, naproxen sodium, and ketoprofen. For a garden-variety headache, any one will do. But these drugs differ widely in their benefits and potential side effects. How much do you really know about the pills you take for pain?
First published Oct 05, 1998
Last updated May 27, 2008
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