title: FDA position on product selection for 'narrow therapeutic index' drugs.
mesh_terms: D017277:Drug Approval / Q000331:legislation & jurisprudence; D016568:Drugs, Generic; D006801:Humans; D007880:Legislation, Drug; D013810:Therapeutic Equivalency; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D016568:Drugs, Generic