title: Ampicillin and urticaria.
mesh_terms: D000667:Ampicillin / Q000009:adverse effects*; D003875:Drug Eruptions / Q000209:etiology*; D004890:Erythema / Q000139:chemically induced; D006801:Humans; D014581:Urticaria / Q000139:chemically induced*
chemical_list: D000667:Ampicillin