title: Clinical study of penicillinase.
mesh_terms: D000799:Angioedema / Q000188:drug therapy; D003888:Desensitization, Immunologic; D003875:Drug Eruptions / Q000188:drug therapy; D004342:Drug Hypersensitivity / Q000188:drug therapy*; D007273:Injections, Intramuscular; D010405:Penicillinase / Q000627:therapeutic use*; D010406:Penicillins / Q000009:adverse effects*; D014581:Urticaria / Q000188:drug therapy
chemical_list: D010406:Penicillins; D010405:Penicillinase