17 β Estradiol Rifampicin
ModerateRifampicin can lower the amount of 17 β estradiol in the blood. This may make estradiol work less well, and it may also change your pattern of uterine bleeding.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.