The formulary files. Step therapy for antidepressants saves 11.7 percent in one year.
D000928:Antidepressive Agents / Q000191:economics*; D003363:Cost Control; D003863:Depression / Q000188:drug therapy*; D016527:Drug Costs; D005569:Formularies as Topic; D006279:Health Maintenance Organizations; D006801:Humans; D014481:United States
D000928:Antidepressive Agents