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Do over-the-counter cough syrups work?

January 23, 2008 12:00:00 AM PST
A new study finds that over-the-counter cough medicine may not work in adults.Just last week the FDA warned parents not to use cough syrups for children under two. A health group reviewed 25 studies on how well cough medicine works in adults. It found that it's actually unclear whether any of the cough syrups work any better than a placebo.

But many of those studies that showed a positive result were done by pharmaceutical companies.

The authors of this new study say there may be a potential industry bias.