What is the role of progestins in the treatment of abnormal uterine bleeding (AUB)?

Updated: Dec 07, 2018
  • Author: Millie A Behera, MD; Chief Editor: Richard Scott Lucidi, MD, FACOG  more...
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Answer

Chronic management of AUB requires episodic or continuous exposure to a progestin. In patients without contraindications, this is best accomplished with an oral contraceptive given the many additional benefits, including decreased dysmenorrhea, decreased blood loss, ovarian cancer prophylaxis, and decreased androgens.

In patients with a pill contraindication, cyclic progestin for 12 days per month using medroxyprogesterone acetate (10 mg/d) or norethindrone acetate (2.5-5 mg/d) provides predictable uterine withdrawal bleeding, but not contraception. Cyclic natural progesterone (200 mg/d) may be used in women susceptible to pregnancy, but may cause more drowsiness and does not decrease blood loss as much as a progestin.

In some women, including those who are unable to tolerate systemic progestins/progesterone or those who have contraindications to estrogen-containing agents, a progestin-secreting IUD may be considered that controls the endometrium via a local release of levonorgestrel, avoiding elevated systemic levels. [12]


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