10 Most Popular Prescription Drugs in the U.S.

Nearly half of Americans (48 percent) use at least one prescription drug*. But you may be surprised to learn which prescriptions are used most often.

So what's number one? Prozac, Vicodin, maybe an antibiotic? Nope. Check out this top-10 list* and see for yourself:

1. Lipitor

2. Nexium

3. Plavix

4. Advair Diskus

5. Abilify

6. Seroquel

7. Singulair

8. Crestor

9. Actos

10. Epogen

If you take a prescription drug you can't afford, check out InsWeb's 5 Ways to Save on Prescription Drug Costs and see if you can save money.

*Centers for Disease Control and Prevention, September 2010

** IMS Institute for Healthcare Informatics, April 2011

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