The levonorgestrel-releasing intrauterine system (LNG-IUS) is a safe, effective and acceptable form of contraception used by over 150 million women worldwide. It also has a variety of noncontraceptive benefits including treatment for menorrhagia, …

Levonorgestrel is an intrauterine device (IUD) that prevents ovulation and pregnancy. It’s a type of contraceptive that can also treat heavy periods. A healthcare provider will place this device inside of your uterus.

2025年3月1日 · Levonorgestrel-releasing intrauterine system is a device that contains the female hormone, levonorgestrel. It is placed in the uterus (womb) where it slowly releases the hormone to prevent pregnancy for up to 3 years for Skyla®, up to 5 years for Kyleena®, or up to 8 years for Liletta® and Mirena®.

左炔诺孕酮宫内缓释系统（levonorgestrel- releasing intrauterine system，LNG-IUS）由芬兰赫尔辛基大学甾类性激素实验室和美国人口理事会国际避孕研究委员会联合研发，于1990年首先在芬兰上市，2000年在中国上市。 LNG-IUS有软而小巧的"T"形支架，支架由聚乙烯材料制成，长和宽均为32 mm；纵臂上的圆柱体为储药库，含有左炔诺孕酮（LNG）52 mg，其在子宫腔内的释放速率为20 μg/d。 LNG-IUS在全球获批的适应证包括避孕、月经过多、痛经和雌激素补充治疗过程 …

2024年11月19日 · Four intrauterine devices (IUDs) are available in the United States: one copper (380 mm 2) IUD and three levonorgestrel (LNG) (13.5 mg, 19.5 mg, or 52 mg) IUDs. Fewer than one IUD user out of 100 becomes pregnant in the first year with typical use. [28] .

左炔诺孕酮宫内节育系统（Levonorgestrel intrauterine system, LNG-IUS）用于保护女性乳腺癌患者的子宫内膜，患者通常服用他莫昔芬预防乳腺癌复发。

Two types of LARC are available in the United States: 1) intrauterine devices (IUDs) and 2) the etonogestrel single-rod contraceptive implant. Five IUDs are currently marketed in the United States: the copper-containing IUD and four levonorgestrel-releasing intrauterine devices (LNG …

本文獻回顧的目的是評估使用 lng-iud 是否對於近期接受子宮內膜異位症手術之女性，在於相關疼痛控制、改善生活品質及病患滿意度等方面是否有益處。

2025年3月20日 · The 52mg LNG-IUD was removed in four patients within three months after start of estradiol, leaving 35 patients for analysis at the three months follow-up. At twelve-months’ follow-up, the 52mg LNG-IUD was removed in nine additional patients, and six patients were lost to follow-up, leaving 20 patients for the twelve-month analyses.

The levonorgestrel (LNg) intrauterine device (IUD) releases small amounts of levonorgestrel, a form of progesterone, into the uterus each day. This type of IUD reduces cramping and heavy menstrual bleeding. And it is a highly effective method of birth control. Hormonal IUDs prevent pregnancy for 3 to 5 years, depending...