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  • Title: Unexpected clinical remission of cholestasis after rifampicin therapy in patients with normal or slightly increased levels of gamma-glutamyl transpeptidase.
    Author: Cançado EL, Leitão RM, Carrilho FJ, Laudanna AA.
    Journal: Am J Gastroenterol; 1998 Sep; 93(9):1510-7. PubMed ID: 9732934.
    Abstract:
    OBJECTIVE: Rifampicin is an effective drug against pruritus in intrahepatic cholestasis. However, there is no specific hepatic disease in which its use could cause undoubtedly biochemical improvement. The aim of this study was to describe patients with complete remission of cholestatic symptoms after rifampicin therapy. METHODS: We reported three female patients with intrahepatic cholestasis with no evidence of viral, metabolic, or autoimmune liver diseases. Total bilirubin levels ranged from 13.2 to 27.2 mg/dl (before the first treatment with rifampicin), and in all of them gamma-glutamyl transpeptidase values were within the normal range or slightly increased. Rifampicin therapy was administered orally, without any concomitant drug, with an effective dosage of 5-17 mg/kg/day. RESULTS: In all patients, pruritus ceased completely and bilirubin returned to normal values. The symptoms recurred after rifampicin withdrawal on, at least, three occasions in each patient, and these symptoms were always eliminated after its reintroduction. The patients had a total of 16 cholestatic episodes during a follow-up of 8 yr, with a complete clinical recovery in all of them. Undergoing therapy with a suitable dosage of rifampicin, none of the patients had a cholestatic crisis even during a period for as long as 12 months. The diagnosis of two patients was consistent with benign recurrent intrahepatic cholestasis, and it was not well defined in the remaining. CONCLUSION: Rifampicin may induce clinical remission, and perhaps prevent clinical relapses of intrahepatic cholestasis with normal or slightly increased levels of gamma-glutamyl transpeptidase.
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