Ethinyl Estradiol may decrease the anticoagulant activities of Dextran. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ecabet. The therapeutic efficacy of Troxerutin can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Phenformin can be decreased when used in combination with Desogestrel. Ethinyl Estradiol may increase the thrombogenic activities of Anthrax immune globulin human. The therapeutic efficacy of Glibornuride can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Artemether. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ramipril. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ximelagatran. The serum concentration of Prednicarbate can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Chenodeoxycholic acid can be decreased when used in combination with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Edetic Acid. The therapeutic efficacy of Insulin Human can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Triamcinolone can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with St. John's Wort. The therapeutic efficacy of Glyburide can be decreased when used in combination with Desogestrel. The serum concentration of Desogestrel can be decreased when it is combined with Perampanel. The therapeutic efficacy of Rosiglitazone can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Insulin Aspart can be decreased when used in combination with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Clemastine. Tranexamic Acid may increase the thrombogenic activities of Desogestrel. The therapeutic efficacy of Ximelagatran can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Edoxaban can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Insulin Detemir can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Ivacaftor. Ethinyl Estradiol may increase the thrombogenic activities of Lenalidomide. The therapeutic efficacy of Desogestrel can be decreased when used in combination with Hexobarbital. The therapeutic efficacy of Dextran 75 can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Castanospermine can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Insulin Aspart can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Apixaban can be decreased when used in combination with Desogestrel. Ethinyl Estradiol may decrease the anticoagulant activities of Sulodexide. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Palbociclib. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Benzamidine. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Trandolapril. Desogestrel may increase the thrombogenic activities of Human C1-esterase inhibitor. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Spirapril. The serum concentration of Desogestrel can be decreased when it is combined with Felbamate. The metabolism of Ethinyl Estradiol can be decreased when combined with Sildenafil. Ethinyl Estradiol may decrease the anticoagulant activities of Citric Acid. The therapeutic efficacy of Desogestrel can be decreased when used in combination with Alitretinoin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Batimastat. The therapeutic efficacy of Glimepiride can be decreased when used in combination with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Venlafaxine. The therapeutic efficacy of Protein S human can be decreased when used in combination with Desogestrel. Ethinyl Estradiol may decrease the anticoagulant activities of Dalteparin. The therapeutic efficacy of Nateglinide can be decreased when used in combination with Desogestrel. The serum concentration of Desogestrel can be decreased when it is combined with Topiramate. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Cilastatin. The therapeutic efficacy of Antithrombin III human can be decreased when used in combination with Desogestrel. The serum concentration of Formestane can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Desogestrel can be decreased when it is combined with Prucalopride. The metabolism of Ethinyl Estradiol can be decreased when combined with Itraconazole. Valdecoxib may increase the thrombogenic activities of Ethinyl Estradiol. The serum concentration of Mometasone can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be increased when combined with Nafcillin. Ethinyl Estradiol may decrease effectiveness of Capromab pendetide as a diagnostic agent. The serum concentration of Tixocortol can be increased when it is combined with Ethinyl Estradiol. Nabumetone may increase the thrombogenic activities of Ethinyl Estradiol. The therapeutic efficacy of Miglitol can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Alpha-1-proteinase inhibitor. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Rifaximin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Prucalopride. The serum concentration of Equilenin can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Ziprasidone. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Oxcarbazepine. The therapeutic efficacy of Desogestrel can be decreased when used in combination with Tretinoin. The therapeutic efficacy of Desogestrel can be decreased when used in combination with Ulipristal. The serum concentration of Hydrocortisone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Danaparoid. The serum concentration of Methylprednisolone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Enoxaparin. The serum concentration of Beclomethasone dipropionate can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Insulin Detemir can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Empagliflozin can be decreased when used in combination with Desogestrel. Desogestrel may increase the thrombogenic activities of Conestat alfa. The therapeutic efficacy of Sitagliptin can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Enalkiren. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Armodafinil. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Colesevelam. The serum concentration of Clobetasol can be increased when it is combined with Ethinyl Estradiol. The serum concentration of NCX 1022 can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Protocatechualdehyde. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Saxagliptin. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Barbexaclone. The therapeutic efficacy of Darexaban can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Hexobarbital. The therapeutic efficacy of Pentaerythritol Tetranitrate can be decreased when used in combination with Desogestrel. The serum concentration of Desogestrel can be decreased when it is combined with Lamotrigine. The therapeutic efficacy of Citric Acid can be decreased when used in combination with Desogestrel. The serum concentration of Desogestrel can be decreased when it is combined with Artemether. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Benazepril. The therapeutic efficacy of Glibornuride can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Ceritinib. Desogestrel may decrease the anticoagulant activities of Dicoumarol. The therapeutic efficacy of Desogestrel can be decreased when used in combination with Fosphenytoin. The metabolism of Ethinyl Estradiol can be increased when combined with Pentobarbital. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Enalapril. Desogestrel may decrease the anticoagulant activities of Phenprocoumon. The metabolism of Ethinyl Estradiol can be decreased when combined with Olaparib. The therapeutic efficacy of Bempedoic acid can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Fusidic Acid. The therapeutic efficacy of Miglustat can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Metformin can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Z-Val-Ala-Asp fluoromethyl ketone. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Vitamin C. The metabolism of Ethinyl Estradiol can be decreased when combined with Isradipine. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Nitroaspirin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Delanzomib. Ethinyl Estradiol may decrease the anticoagulant activities of Nadroparin. Ethinyl Estradiol may decrease the anticoagulant activities of Ethyl biscoumacetate. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Alitretinoin. The therapeutic efficacy of Ursodeoxycholic acid can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Liraglutide can be decreased when used in combination with Desogestrel. The serum concentration of Flibanserin can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Sulodexide can be decreased when used in combination with Desogestrel. The serum concentration of Budesonide can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Acarbose can be decreased when used in combination with Desogestrel. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Methylphenobarbital. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Isoflurophate. The therapeutic efficacy of Abciximab can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Enalaprilat. The serum concentration of Desogestrel can be decreased when it is combined with Colesevelam. The therapeutic efficacy of Argatroban can be decreased when used in combination with Desogestrel. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Cilazapril. The metabolism of Ethinyl Estradiol can be decreased when combined with Clarithromycin. The serum concentration of Flumethasone can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Alogliptin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Enzalutamide. The serum concentration of 5-androstenedione can be increased when it is combined with Ethinyl Estradiol.