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Wiktionary
progestin

n. (context chemistry English) A synthetic progestagen intended to mimic the effects of progesterone, often for contraceptive purposes.

WordNet
progestin

n. any of a group of steroid hormones that have the effect of progesterone [syn: progestogen]

Wikipedia
Progestin

The term progestin may refer to synthetic progestogens that have effects similar to those of progesterone, or to progesterone itself. The two most common uses of progestins are for hormonal contraception (either alone or with an estrogen), and to prevent endometrial hyperplasia from unopposed estrogen in hormone replacement therapy. Progestins are also used to treat secondary amenorrhea, dysfunctional uterine bleeding and endometriosis, and as palliative treatment of endometrial cancer, renal cell carcinoma, breast cancer, and prostate cancer. High-dose megestrol acetate is used to treat anorexia, cachexia, and AIDS-related wasting.

Progesterone (or sometimes dydrogesterone or hydroxyprogesterone caproate) is used for luteal support in IVF protocols, questionably for treatment of recurrent pregnancy loss, and for prevention of preterm birth in pregnant women with a history of at least one spontaneous preterm birth.

Progestins are also used in judicial chemical castration of sex offenders and in the treatment of individuals suffering from unwanted sexual urges (e.g., from hypersexuality, paraphilias, etc.) due to their antigonadotropic and thus functional antiandrogen effects.

Usage examples of "progestin".

Prempro is the only prescription tablet that combines Premarin and a progestin in one tablet.

Since it thus paves the way for pregnancy, the hormone was first named progestin (proh-jes'tin.

The only features that gave Carmen away were her voice, which remained husky despite the estrogen and progestin, and her hands.