Tri-regol 21 +7 is a combined oral contraceptive drug containing 21 mg ethinyl estradiol, 75 mcg levonorgestrel. This is a contraceptive for hormone replacement therapy. The manufacturer is the Hungarian pharmaceutical company Gedeon Richter, part of the Gedeon Richter group of companies. It is intended for women who suffer from menstrual irregularities and want to avoid the risks associated with using other methods of contraception. Before using the drug, consultation with a doctor and a thorough medical examination are necessary.