title: Contact allergy to lidocaine.
abstract: Two cases of contact allergy to lidocaine are reported. They also reacted to chemically related anesthetics of the amide type: one to bupivacaine, mepivacaine and prilocaine and the other to mepivacaine only. The patients also reacted to the chemically nonrelated cincaine, an anesthetic of the ester type. The lidocaine metabolites o-toluidine and mxylidine gave negative reactions.
mesh_terms: D000328:Adult; D003876:Dermatitis, Atopic / Q000139:chemically induced*; D005260:Female; D006484:Hemorrhoids / Q000188:drug therapy; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000139:chemically induced*; D008012:Lidocaine / Q000009:adverse effects*; D011538:Pruritus Ani / Q000188:drug therapy
chemical_list: D008012:Lidocaine