title: Quinidine hepatitis.
abstract: Long-term administration of quinidine was associated with persistent elevation of serum concentrations of SGOT, lactic acid dehydrogenase, and alkaline phosphatase. Liver biopsy showed active hepatitis. Discontinuance of quinidine therapy led to normalization of liver function tests. A challenge dose of quinidine caused clinical symptoms and abrupt elevation of SGOT, alkaline phosphatase, and lactic acid dehydrogenase values. We concluded that this patient had quinidine hepatotoxicity and believe that this is the first case reported with liver biopsy documentation. This report also suggests that, even after long-term administration, the hepatic toxicity is reversible.
mesh_terms: D000368:Aged; D000469:Alkaline Phosphatase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000032:analysis; D001706:Biopsy; D005117:Cardiac Complexes, Premature / Q000188:drug therapy; D056486:Chemical and Drug Induced Liver Injury / Q000175:diagnosis / Q000209:etiology*; D004796:Clinical Enzyme Tests; D005260:Female; D006801:Humans; D007770:L-Lactate Dehydrogenase / Q000097:blood; D008099:Liver / Q000473:pathology; D011802:Quinidine / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D007770:L-Lactate Dehydrogenase; D001219:Aspartate Aminotransferases; D000469:Alkaline Phosphatase; D011802:Quinidine