title: Complete heart block in chronic chloroquine poisoning.
abstract: Complete heart block of recent onset is reported and is attributed to chronic chloroquine abuse. Total blood chloroquine was more than two times higher in this patient than in 4 patients following therapeutic doses of chloroquine, and chloroquine basic metabolites were also proportionally higher in this patient's blood.
mesh_terms: D002738:Chloroquine / Q000008:administration & dosage / Q000506:poisoning*; D004562:Electrocardiography; D006327:Heart Block / Q000139:chemically induced*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012651:Self Medication
chemical_list: D002738:Chloroquine