title: An unusual Jarisch-Herxheimer reaction.
mesh_terms: D000328:Adult; D001446:Balanitis / Q000188:drug therapy; D005334:Fever / Q000139:chemically induced*; D006801:Humans; D008297:Male; D010402:Penicillin G Procaine / Q000009:adverse effects*; D011674:Pulse; D013587:Syphilis / Q000188:drug therapy*
chemical_list: D010402:Penicillin G Procaine