title: Allergic urticarial rash from oral codeine.
abstract: A case of an urticarial rash from delayed-type allergy to orally administered codeine is presented. The literature on contact allergy to codeine is reviewed, and the rôle of patch testing in drug eruptions discussed.
mesh_terms: D000284:Administration, Oral; D055598:Chemical Phenomena; D002621:Chemistry; D003061:Codeine / Q000009:adverse effects*; D004305:Dose-Response Relationship, Drug; D003875:Drug Eruptions / Q000209:etiology*; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000139:chemically induced; D008297:Male; D008875:Middle Aged; D010328:Patch Tests; D013329:Structure-Activity Relationship; D014581:Urticaria / Q000139:chemically induced
chemical_list: D003061:Codeine