[[LIVER TOXICITY DUE TO RIFAMPICIN MONOTHERAPY IN LATENT TUBERCULOSIS INFECTION].]

To investigate the outcome of rifam- picin (RFP) monotherapy for latent tuberculosis infection (LTBI) and the incidence of RFP-induced liver toxicity. [Method] We conducted a retrospective chart review of patients who received RFP monotherapy as LTBI treatment at the Daiichi Dispensary Clinic. [Result] Of 61 patients who received RFP monotherapy, the treatment completion rate was 88.5%, self-termination rate was 3.3%, abandonment rate due to adverse drug effects was 8.2% (5 cases: 3 cases of skin eruption and 2 cases of liver dysfunction). Among the 2 cases of liver dysfunction, I was not associated with abnormal alkaline phosphatase (ALP) or gamma-glutamyl transferase (y GTP) levels. Among patients with liver dysfunction who did not discontinue RFP mono- therapy, no cases-of severely abnormal ALP and/or y GTP levels were reported. [Conclusion] The incidence of liver toxicity due to RFP is lower than that observed with isoniazid, and liver dysfunction due to RFP was not always associated with abnormal of ALP and/or yGTP levels.