Norgestrel, sold under the brand name Opill among others, is a progestin which is used in birth control pills. It is often combined with the estrogen ethinylestradiol , marketed as Ovral. It is also used in menopausal hormone therapy .

2024年7月23日 · What is norgestrel? Norgestrel is used in women as contraception to prevent pregnancy. Norgestrel should not be used as emergency birth control (morning after pill) and will not protect you from sexually transmitted diseases including HIV and AIDS. Norgestrel may also be used for purposes not listed in this medication guide.

炔诺孕酮，化学名称为13-乙基-17-羟基-18,19-二去甲-17α-孕甾-4-烯-20-炔-3-酮，是一种有机化合物，化学式为C21H28O2，是一种孕激素类药，主要用于女性短期避孕。 化学式：C21H28O2. 分子量：312.446. CAS号：6533-00-2. EINECS号：212-349-8. 密度：1.139g/cm 3. 熔点：239-241℃. 沸点：459.1ºC. 闪点：195.4℃. 折射率：1.571. 外观：白色结晶性粉末 [3] 本品为13-乙基-17-羟基-18,19-二去甲-17α-孕甾-4-烯-20-炔-3-酮，含C21H28O2应为97.0%～103.0%。 本品为 …

2025年4月1日 · Norgestrel is used to prevent pregnancy. It works by stopping a woman's egg from fully developing each month. The egg can no longer accept a sperm and fertilization (pregnancy) is prevented. No contraceptive method is 100 percent effective.

It contains the hormone norgestrel (a progestin). It works by making vaginal fluid thicker to help prevent sperm from reaching an egg (fertilization). It may also prevent the release of an egg...

2023年8月17日 · Norgestrel is a progestin-only oral contraceptive that FDA approved on July 13, 2023 as a nonprescription birth control pill, the first time a daily oral contraceptive has been made available over the counter (OTC) in the U.S. Norgestrel is a synthetic formulation of the female sex hormone progesterone, taken to prevent pregnancy.

On July 13, 2023, the FDA approved Opill as a nonprescription oral birth control pill. Opill contains the hormone norgestrel and belongs to the class of medications known as progestins. Opill...

2025年1月7日 · Norgestrel (and more specifically the active stereoisomer levonorgestrel) binds to the progesterone and estrogen receptors within the female reproductive tract, the mammary gland, the hypothalamus, and the pituitary.

Norgestrel is used to prevent pregnancy. It works by stopping a woman's egg from fully developing each month. The egg can no longer accept a sperm and fertilization (pregnancy) is prevented.

2015年11月30日 · Norgestrel is synthetic steroidal progestin that is used in combination with ethinyl estradiol for oral contraception. Norgestrel is composed of a racemic mixture of two stereoisomers, dextronorgestrel and levonorgestrel. However, only the levorotary enantiomer (levonorgestrel) is biologically active. The next evolution of DrugBank is here.