<unk> , sold under the brand name Visanne among others, is a progestin medication which is used in birth control pills and in the treatment of endometriosis. It is also used in menopausal hormone therapy and to treat heavy periods.<unk>  is available both alone and in combination with estrogens. It is taken by mouth. Side effects of<unk>  include menstrual irregularities, headaches, nausea, breast tenderness, depression, and acne, among others.<unk>  is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone. It is a unique progestogen, with strong effects in the uterus. The medication has some antiandrogenic activity, which may help to improve androgen-dependent symptoms like acne, and has no other important hormonal activity.<unk>  was discovered in 1979 and was introduced for medical use in 1995. Additional formulations of<unk>  were approved between 2007 and 2010. It is sometimes referred to as a "fourth-generation" progestin.<unk>  is marketed widely throughout the world. It is available as a generic medication.
Dienogest
Nafarelin
Estropipate
Degarelix
Protollin
Gestodene
Tesamorelin
Macimorelin