title: Essential drugs concept: still valid.
abstract: When used correctly, a selection of well-assessed drugs with good risk-benefit ratios is sufficient to meet most medical needs.
mesh_terms: D018954:Drugs, Essential / Q000191:economics; D005569:Formularies as Topic; D006801:Humans; D018570:Risk Assessment; D014944:World Health Organization
chemical_list: D018954:Drugs, Essential