Tacrolimus-induced severe cholestasis complicating renal transplantation.

Tacrolimus, a calcineurin inhibitor, is a potent immunosuppressive agent used by a majority of transplanters across the globe. Its adverse effects include nephrotoxicity, neurotoxicity, new onset diabetes after transplant, gastro-intestinal toxicity, hepatotoxicity, and thrombotic microangiopathy. Tacrolimus-induced hepatotoxicity is a very uncommon side effect. We report a case of tacrolimus-induced hepatotoxicity in the form of cholestatic hepatitis a renal transplant recipient. Hepatotoxicity did not decrease after dose reduction; however, normalization of liver enzymes occurred after discontinuing tacrolimus.