Rifampicin induced uterine bleeding.

A case of uterine bleeding after intake of rifampicin is reported in a 35-year-old female. Provocation test was also positive. The underlying mechanism whether it was a hypersensitivity phenomenon like fixed drug eruption or due to induction of uterine acyl-hydrolase enzyme, is not clear. Uterine bleeding has not been observed as a side-effect of rifampicin in the past.