The serum concentration of Corticosterone can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Exemestane can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Acetohexamide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ecabet. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ritonavir. 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 Ramipril. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ulinastatin. The metabolism of Ethinyl Estradiol can be decreased when combined with Sulfisoxazole. Ethinyl Estradiol may decrease the anticoagulant activities of Desirudin. The metabolism of Ethinyl Estradiol can be decreased when combined with Amiodarone. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Tretinoin. The serum concentration of Fluocinonide can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Rimexolone can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Oxcarbazepine. The therapeutic efficacy of Repaglinide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Trandolapril. The therapeutic efficacy of Glyburide can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Deoxyspergualin can be decreased when used in combination with Ethinyl Estradiol. Lumiracoxib may increase the thrombogenic activities of Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Spirapril. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Elafin. The serum concentration of Conivaptan can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Enoxaparin. The serum concentration of Estrone sulfate can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Fusidic Acid. The serum concentration of Fluocinolone Acetonide can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Letaxaban. The metabolism of Ethinyl Estradiol can be decreased when combined with Nelfinavir. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Metreleptin. The therapeutic efficacy of Nateglinide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Atamestane can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Lisinopril. 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 Posaconazole. Ethinyl Estradiol may decrease the anticoagulant activities of Ancrod. The serum concentration of Theophylline can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be increased when combined with Griseofulvin. The therapeutic efficacy of Insulin Detemir can be decreased when used in combination with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Saquinavir. Etoricoxib may increase the thrombogenic activities of Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Verapamil. The serum concentration of Medrysone can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Voglibose can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Beclomethasone dipropionate can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Phenformin can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Formestane can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Delavirdine. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Delanzomib. Etodolac may increase the thrombogenic activities of Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be increased when combined with Rifapentine. The therapeutic efficacy of Sotagliflozin can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Gliquidone can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Isotretinoin. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Sarilumab. The serum concentration of Fluprednidene can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Pramlintide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Hydrocortisone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may increase the thrombogenic activities of Thalidomide. Ethinyl Estradiol may decrease the anticoagulant activities of Nadroparin. Ethinyl Estradiol may decrease the anticoagulant activities of Ardeparin. The serum concentration of Halcinonide can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Mifepristone. The therapeutic efficacy of Levothyroxine can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with 4-(2-Aminoethyl)Benzenesulfonyl Fluoride. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Cholesterol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Cilazapril. Ethinyl Estradiol may decrease the anticoagulant activities of Abciximab. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Deferasirox. The serum concentration of Desoximetasone can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Equilin can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Simeprevir. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Geldanamycin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Enalapril. The therapeutic efficacy of Metformin can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Prednisolone can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Diltiazem. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Barbexaclone. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Elvitegravir. Parecoxib may increase the thrombogenic activities of Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Heparin. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Carbamazepine. The therapeutic efficacy of Gusperimus can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Diflorasone can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Fosamprenavir. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Methohexital. The risk or severity of adverse effects can be increased when Ethinyl Estradiol is combined with Ospemifene. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Fosinopril. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Benzamidine. The serum concentration of Lamotrigine can be decreased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Benazepril. The metabolism of Ethinyl Estradiol can be decreased when combined with Erythromycin. The serum concentration of Amcinonide can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Alitretinoin. The serum concentration of HE3286 can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ciclesonide can be increased when it is combined with Ethinyl Estradiol. The metabolism of Ethinyl Estradiol can be decreased when combined with Clarithromycin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Aprotinin. The serum concentration of Difluocortolone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Ferulic acid. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Aprepitant. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Acitretin. Ethinyl Estradiol may increase the thrombogenic activities of Tranexamic Acid. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ximelagatran. The therapeutic efficacy of 2,4-thiazolidinedione can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with St. John's Wort. The serum concentration of Fluorometholone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Dextran. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Cilastatin. The therapeutic efficacy of Chlorpropamide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of Dexamethasone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Dextran 40. 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 Thiorphan. The serum concentration of Fludrocortisone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Dextran 70. The therapeutic efficacy of Hyaluronidase can be decreased when used in combination with Ethinyl Estradiol. The therapeutic efficacy of Ethinyl Estradiol can be decreased when used in combination with Phenytoin. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Quinapril. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Dabigatran etexilate. The serum concentration of Clobetasol can be increased when it is combined with Ethinyl Estradiol. The therapeutic efficacy of Liraglutide can be decreased when used in combination with Ethinyl Estradiol. The serum concentration of anecortave acetate can be increased when it is combined with Ethinyl Estradiol. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Temocapril. Ethinyl Estradiol may decrease the anticoagulant activities of Fondaparinux sodium. The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Rufinamide. The serum concentration of Ethinyl Estradiol can be increased when it is combined with Osimertinib. The serum concentration of Oleoyl-estrone can be increased when it is combined with Ethinyl Estradiol. Ethinyl Estradiol may decrease the anticoagulant activities of Dextran 75. The serum concentration of Androstenedione can be increased when it is combined with Ethinyl Estradiol.