Dinosen Dienogest Ritonavir
ModerateRitonavir can raise the amount of Dienogest in your blood. It slows down CYP3A4, the liver enzyme that normally breaks Dienogest down, so the hormone stays in the body longer and at higher levels. This may cause more side effects from Dienogest. If you take both, tell your doctor or pharmacist first, and don't stop or change either medicine on your own.
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.