We usually view side effects as a bad thing, but sometimes they point the way to a whole new use for a drug.
"We think of drugs as being specific to a task," says Dr. Jeremy Greene, Harvard University medical historian. In fact, he says, "drugs are very complex objects."
As research and development costs have climbed, drug companies are more interested than ever in finding ways to repurpose their products. Often they seek to simply market an existing drug for a new condition, but in some cases they give the drug a whole new name and face. From our friends at Health.com, here are eight drugs that lead double lives...
The first on the list? Prozac, which is also sold as Sarafem.
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