Terodin 2 Tolterodine Tartrate Ketoconazole
ModerateKetoconazole slows an enzyme the body uses to break down medicines. In a study of people who naturally process some medicines slowly, tolterodine (Uritol) blood levels rose significantly when taken with ketoconazole.
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.
What to do: Ask your doctor or pharmacist before taking them together. They may check you or change the plan.