Ucol Tolterodine Tartrate Ketoconazole
ModerateKetoconazole slows down CYP3A4, an enzyme the body uses to break down medicines. In a study, people who were "poor metabolizers" (their bodies naturally process some medicines slowly) took ketoconazole together with Uritol (Tolterodine). Their blood levels of Tolterodine rose significantly.
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.