CMS posts comparison prices for popular drug classes.
D000368:Aged; D014487:Centers for Medicare and Medicaid Services, U.S.; D003256:Community Participation; D016527:Drug Costs; D016568:Drugs, Generic / Q000191:economics*; D006801:Humans; D020407:Internet; D006278:Medicare / Q000191:economics*; D011306:Prescription Fees; D014481:United States
D016568:Drugs, Generic