Menopausal dosages of HT
If use of contraceptive doses of estrogen is not appropriate, continuous off-label use of menopausal combination formulations (physiologic dosage) of hormonal therapy (HT; ie, lower doses of estrogen than contraceptives) may be effective in reducing or eliminating AUB. Options for menopausal combination formulations include generic ethinyl estradiol 5 µg/norethindrone acetate 1 mg or estradiol 1 mg/norethindrone acetate 0.5 mg.7 High-dose oral progestin therapy (norethindrone acetate 5 mg tablet once daily or medroxyprogesterone acetate 10 mg tablets 1–3 times daily) also can be used when combination contraceptives are contraindicated and may be more effective than lower-dose combination formulations.
Package labeling, as well as some guidelines, indicate that oral progestins used to treat AUB should be taken cyclically.8 However, continuous daily use is easier for many patients and may be more effective in reducing bleeding. Accordingly, we counsel patients with AUB who are using progestins and who do not wish to conceive to take these medications continuously. High-dose oral progestin therapy may cause bloating, dysphoria, and increased appetite/weight gain. Women initiating hormonal management (including the progestin IUDs detailed below) for AUB should be counseled that irregular or even continuous light bleeding/spotting is common initially, but this bleeding pattern typically decreases with continued use.
IUDs
The LNG 52 mg IUD (Mirena or Liletta) effectively treats HMB, reducing bleeding in a manner comparable to that of endometrial ablation.9,10 The Mirena IUD is approved for treatment of HMB in women desiring intrauterine contraception. In contrast to oral medications, use of progestin IUDs does not involve daily administration and may represent an attractive option for women with HMB who would like to avoid surgery or preserve fertility. With ongoing use, continuous oral or intrauterine hormonal management may result in amenorrhea in some women with AUB.
When the LNG 52 mg IUD is used to treat HMB, the menstrual suppression impact may begin to attenuate after approximately 4 years of use; in this setting, replacing the IUD often restores effective menstrual suppression.11 The LNG 52 mg IUD effectively suppresses menses in women with coagulation disorders; if menstrual suppression with the progestin IUD is not adequate in this setting, it may be appropriate to add an oral combination estrogen-progestin contraceptive or high-dose oral progestin.11,12
NSAIDs and tranexamic acid
Off-label use of nonsteroidal anti-inflammatory drugs (naproxen 500–1,000 mg daily for 5 days beginning at the onset of menstrual flow or tranexamic acid two 650-mg tablets 3 times daily for up to 5 days during episodes of heavy flow) can suppress HMB and is useful for women who prefer to avoid or have contraindications to hormonal treatments.13,14 Unfortunately, these agents are not as effective as hormonal management in treating AUB.
Iron supplementation is often needed
Iron depletion commonly results from HMB, often resulting in iron deficiency anemia. When iron depletion (readily identified by checking a serum ferritin level) or iron deficiency anemia is identified, iron supplementation should be recommended. Every-other-day administration of iron supplements maximizes iron absorption while minimizing the adverse effects of unabsorbed iron, such as nausea. Sixty mg of elemental iron (ferrous sulfate 325 mg) administered every other day represents an inexpensive and effective treatment for iron deficiency/anemia.17 In patients who cannot tolerate oral iron supplementation or for those in whom oral therapy is not appropriate or effective, newer intravenous iron formulations are safe and effective.18
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