Fesotrex 4 ER Fesoterodine Fumarate Carbamazepine
ModerateCarbamazepine and rifampin are CYP3A4 inducers. If you take Fesoterodine Fumarate with them, no dose change is needed.
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.