title: How drugs act. Four. Intolerance, idiosyncrasy and hypersensitivity.
mesh_terms: D004342:Drug Hypersensitivity; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D004364:Pharmaceutical Preparations / Q000378:metabolism; D010600:Pharmacology
chemical_list: D004364:Pharmaceutical Preparations