Promegestone (R 5020) is a potent progestin devoid of androgenic side-effects and has marked anti-estrogenic activity. Promegestone is an AChR noncompetitive antagonist that may alter AChR function by interactions at the lipid-protein interface. Promegestone is used in the treatment of gynecological disorders due to luteal insufficiency.

Cridanimod (Virexxa) is a small-molecule immunomodulator and interferon inducer, which, in preliminary studies, has been shown to increase progesterone receptor expression in endometrial tissue. Restoration of progesterone receptor expression may re-sensitize endometrial tumor tissue to progestin therapy in previously unresponsive tumors. Cridanimod was originally developed by Polysan and Pharmsynthez and licensed to Xenetic Biosciences. Virexxa is currently being studied in an ongoing Phase 2 multi-national study in conjunction with progestin therapy for the treatment of endometrial cancer in women with the recurrent or persistent disease who have failed progestin monotherapy.

Nomegestrol acetate (NOMAC) is a 19-norprogesterone derivative with high biological activity at the progesterone receptor, a weak anti-androgenic effect, but with no binding to estrogen, glucocorticoid or mineralocorticoid receptors. Nomegestrol has been developed by the Monaco-based company Théramex SAM (a Teva subsidiary). Nomegestrol acetate has been used successfully for the treatment of some gynaecological disorders (menstrual disturbances, dysmenorrhoea, premenstrual syndrome) and as a component of hormone replacement therapy in combination with estradiol for the relief of menopausal symptoms; it has been approved in Europe as monotherapy for the treatment of the menopausal syndrome, uterine diseases and menorrhagia, and in combination with an estrogen for the treatment of menopausal symptoms. Nomegestrol acetate in combination with estradiol is used as an oral contraceptive.

Allylestrenol (INN) (brand names Gestanon, Gestanin, Orageston, Turinal, Gestin, others), or allyloestrenol (BAN), also known as 17α-allylestr-4-en-17β-ol or as 3-deketo-17α-allyl-19-nortestosterone, is a synthetic steroid with progestational activity, that is used to prevent threatened miscarriage, recurrent pregnancy loss, and premature labor. Allylestrenol has also been studied as a treatment for benign prostatic hyperplasia in men, with encouraging results. Although it is less potent as a progestogen relative to many other 19-nortestosterone derivatives, allylestrenol is said to be virtually devoid of androgenic, estrogenic, or glucocorticoid activity, and hence, unlike virtually all other 19-nortestosterone derivatives, appears to be a pure progestogen with similar effects to those of progesterone. Allylestrenol is widely marketed throughout Europe, including Russia and many other European countries, and is also available in Japan, Hong Kong, India, Bangladesh, Indonesia, and much of Southeast Asia, though notably not in the United States or Canada.

Algestone acetophenide, also known as dihydroxyprogesterone acetophenide, is an agonist of the progesterone receptor. Algestone acetophenide in combination with estradiol enanthate is sold under the brand name Deladroxate as a form of long-lasting injectable birth control. The combination provides simultaneously prolonged progestational and estrogenic activities both of which are maintained at effective levels for approximately three weeks after the intramuscular injection of a single dose.