Immune hemolytic anemia and renal failure associated with rifampicin-dependent antibodies with anti-I specificity

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Abstract
A 50-year-old woman with primary biliary cirrhosis developed immune hemolytic anemia and renal failure while receiving rifampicin for the treatment of refractory pruritus. Serological studies revealed the presence of rifampicin-dependent antibodies of the IgM class that, when tested against a wide panel of erythrocytes, had anti-I specificity. Subsequently, rifampicin was withdrawn and prednisone treatment instituted, this resulting in a rapid resolution of the hemolysis, whereas hemodialysis was required for recovery of the renal function. A role is suggested for the anti-I specificity of the antibodies in the development of renal failure associated with rifampicin therapy.