Carbox 150 Oxcarbazepine Desogestrel
ModerateOxcarbazepine is on this list, so it can make Desogestrel work less well. The others are hydantoins, barbiturates, primidone, carbamazepine, rifampicin, rifabutin, felbamate, ritonavir, griseofulvin and St John's Wort products.
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.