Rhabdomyolysis complicating doxylamine overdose. 1987

F S Mendoza, and J O Atiba, and A M Krensky, and L M Scannell
Stanford School of Medicine, Children's Hospital at Stanford, Palo Alto, CA 94304.

A 16-year-old male presenting with anticholinergic symptoms was found to have hematuria and oliguria. Evaluation of the patient revealed a serum creatinine of 2.2 mg/dl, myoglobinuria, and a creatine phosphokinase (CPK) level of 78, 750 IU/l with 99 percent fraction 3 isoenzyme. A toxic screen showed the presence of doxylamine, an antihistamine of the ethanolamine class, at a level of 75 times therapeutic. The patient did not have a history of trauma or seizures. The extremely high CPK level with the doxylamine overdose suggests that doxylamine may be associated with nontraumatic rhabdomyolysis. This is the first case report of rhabdomyolysis being associated with an antihistamine overdose.

UI MeSH Term Description Entries
D008297 Male Males
D011725 Pyridines Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D003402 Creatine Kinase A transferase that catalyzes formation of PHOSPHOCREATINE from ATP + CREATINE. The reaction stores ATP energy as phosphocreatine. Three cytoplasmic ISOENZYMES have been identified in human tissues: the MM type from SKELETAL MUSCLE, the MB type from myocardial tissue and the BB type from nervous tissue as well as a mitochondrial isoenzyme. Macro-creatine kinase refers to creatine kinase complexed with other serum proteins. Creatine Phosphokinase,ADP Phosphocreatine Phosphotransferase,ATP Creatine Phosphotransferase,Macro-Creatine Kinase,Creatine Phosphotransferase, ATP,Kinase, Creatine,Macro Creatine Kinase,Phosphocreatine Phosphotransferase, ADP,Phosphokinase, Creatine,Phosphotransferase, ADP Phosphocreatine,Phosphotransferase, ATP Creatine
D004319 Doxylamine Histamine H1 antagonist with pronounced sedative properties. It is used in allergies and as an antitussive, antiemetic, and hypnotic. Doxylamine has also been administered in veterinary applications and was formerly used in PARKINSONISM.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D012206 Rhabdomyolysis Necrosis or disintegration of skeletal muscle often followed by myoglobinuria. Rhabdomyolyses

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