Each active, light yellow tablet (21) contains 0.1 mg of levonorgestrel, d(-)-13-beta-ethyl-17-alpha-ethinyl-17-beta-hydroxygon-4-en-3-one, a totally synthetic progestogen, and 0.02 mg of ethinyl estradiol, 17-alpha-ethinyl-1,3,5(10)-estratriene-3,17-beta-diol. The inactive ingredients present are croscarmellose sodium, ferric oxide of iron (yellow), ferric oxide of iron (red), lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone K-25, and sodium lauryl sulfate.
Aubra is a hormonal combination that contains two active hormones levonorgestrel and ethinyl estradiol. Aubra like many other contraceptive is used for birth control. Aubra works mainly by preventing the release of the egg during the menstrual cycle. Aubra achieves this by making the vaginal fluid thicker to facilitate prevention of the sperm from reaching the egg; Aubra alters the lining of the womb to prevent the attachment of an ovary.