Oxipine 300 Oxcarbazepine Drospirenone
ModerateOxcarbazepine can make drospirenone less effective. Some other drugs and herbal products can also lower how well HCs work, including efavirenz, phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, rifampicin, rifabutin, rufinamide, aprepitant, and products containing St. John's wort.
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.