Thiotepa Rifampicin
ModerateTaking Thiotepa along with rifampicin, which is a cytochrome P450 inducer, may increase how the body breaks down Thiotepa and lead to higher blood levels of its active metabolite.
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.