Some foods and medicines can affect how birth control pills work. Tell your doctor if you are also using the following: Acetaminophen, aprepitant, ascorbic acid, aspirin, atorvastatin, bosentan, clofibrate, colesevelam, cyclosporine, morphine, prednisolone, rosuvastatin, St John's wort, temazepam, theophylline, tizanidineMedicine to treat an infection (including griseofulvin, fluconazole, itraconazole, ketoconazole, rifabutin, rifampicin, voriconazoleMedicine to treat HIV/AIDS (including amprenavir/ritonavir, atazanavir/ritonavir, boceprevir, darunavir/ritonavir, etravirine, fosamprenavir/ritonavir, indinavir, lopinavir/ritonavir, nelfinavir, nevirapine, ritonavir, telaprevir, tipranavir/ritonavir)Medicine to treat seizures (including carbamazepine, felbamate, lamotrigine, oxcarbazepine, phenytoin, rufinamide, topiramate)Thyroid replacement medicine