Managing Prolonged Menstruation with Oral Contraceptives

Recommended Regimen

The Centers for Disease Control and Prevention recommends using a continuous or extended-cycle combined oral contraceptive regimen containing 20-30 μg ethinyl estradiol with levonorgestrel, taken daily without the traditional hormone-free interval to suppress menstruation and reduce bleeding episodes 1, 2
Start with a low-dose combined oral contraceptive containing 20-30 μg ethinyl estradiol with levonorgestrel or norethisterone 3, 4

Provide reassurance that irregular bleeding typically improves with continued use 1, 2
Consider NSAIDs (ibuprofen, mefenamic acid) for 5-7 days if patient desires treatment 1, 2
Consider a planned hormone-free interval of 3-4 consecutive days, but NOT during the first 21 days of use and NOT more than once per month 1, 2
Alternative treatments include NSAIDs for 5-7 days or short-term hormonal treatment (low-dose COCs or estrogen) for 10-20 days 1, 2

If one pill is late (<24 hours), take the late pill immediately, continue regular schedule (may take 2 pills same day) 5, 6, 3
If one pill is missed (24-48 hours), take the most recent missed pill immediately (discard other missed pills) and use backup contraception (condoms) or avoid intercourse for 7 consecutive days 5, 6, 3
If two or more pills are missed (≥48 hours), take the most recent missed pill immediately (discard other missed pills) and use backup contraception for 7 consecutive days 5, 6, 3

Higher-dose pills (30 μg ethinyl estradiol) provide better ovulation suppression than 20 μg formulations when pills are missed 6, 4
However, for every 10 μg increase in ethinyl estradiol, stroke risk increases by 19% (OR 1.19, 95% CI 1.16-1.23) 4
Monitor blood pressure during routine follow-up visits 3, 4
Rule out underlying pathology (polyps, fibroids, thyroid disorders, pregnancy, STIs) if clinically indicated before attributing bleeding to the contraceptive method 1, 2
Do NOT recommend hormone-free intervals during the first 21 days of extended/continuous use 1, 2
Do NOT recommend hormone-free intervals more than once per month as this compromises contraceptive effectiveness 1, 2