title: Drug coupons don't always save money.
mesh_terms: D017046:Cost Savings; D016527:Drug Costs; D016568:Drugs, Generic / Q000191:economics*; D006801:Humans; D020407:Internet; D008389:Marketing of Health Services; D055553:Prescription Drugs / Q000191:economics*
chemical_list: D016568:Drugs, Generic; D055553:Prescription Drugs