Oral contraceptives generally contain an estrogen (most commonly ethinyl estradiol) and a progestin. In their early formulations, oral contraceptives contained over 100 mg of estrogen. In these and higher doses, estrogens themselves can suppress sebum…

Isotretinoin (Accutane) is available as capsules in the following strengths: 5, 10, 20, 30, and 40 milligrams. The recommended dose depends on your body weight. Usually you take a pill with food twice a day for a total of 15 to 20 weeks. (In Europe, patients…