Take-Home Medications for Adenomyosis
The levonorgestrel-releasing intrauterine device (LNG-IUD) is the first-line take-home medical therapy for adenomyosis, providing superior symptom control compared to other hormonal options. 1, 2
First-Line Therapy
- The LNG-IUD reduces menstrual blood loss by 71-95% and provides significant improvement in both pain and bleeding symptoms. 3
- This device acts primarily at the endometrial level with minimal systemic hormone absorption, making it suitable for most patients including those with metabolic concerns. 3
- The LNG-IUD offers long-term management with user-independent efficacy after placement. 4
- A recent randomized controlled trial demonstrated that the LNG-IUD provides superior pain and bleeding control compared to combined oral contraceptives in women with adenomyosis. 4
Second-Line Oral Medications
Combined Oral Contraceptives
- Combined oral contraceptives reduce painful and heavy menstrual bleeding, though they are less effective than the LNG-IUD. 4, 1
- These can be used continuously to suppress menstruation and control symptoms. 5
Oral Progestins
- High-dose progestins (such as dienogest, norethindrone acetate) are effective alternatives for adenomyosis treatment. 1
- Cyclic oral progestin reduces bleeding by 87%, often resulting in only light bleeding. 3
- Progestins have antiproliferative and anti-inflammatory effects that help control pain symptoms. 6
GnRH Antagonists
- Oral GnRH antagonists (such as relugolix) are highly effective for heavy menstrual bleeding, even with concomitant adenomyosis. 1, 2, 3
- These medications provide equivalent pain relief to older GnRH agonists but with better tolerability. 1
- Critical caveat: Fertility is suppressed during treatment, and symptoms rapidly recur after cessation. 2
- Add-back therapy must be used with long-term GnRH therapy to prevent bone mineral loss. 1
Danazol
- Danazol is equally effective to GnRH agonists but has more androgenic side effects (acne, hirsutism, weight gain). 1
- This limits its use as a first-line option despite its efficacy. 6
Non-Hormonal Adjunct
- Nonsteroidal anti-inflammatory drugs (NSAIDs) can be used for pain control, though they do not address the underlying condition or heavy bleeding. 6
Critical Management Principles
Realistic Expectations
- No medical therapy has been proven to eradicate adenomyosis lesions—all treatments provide only temporary symptom relief. 1, 2
- Symptoms recur after discontinuation of hormonal suppression. 2
- There is no evidence that medical treatment affects future fertility in women with adenomyosis. 1
Treatment Duration
- Medical therapies can be used long-term for symptom management, with the LNG-IUD effective for up to 5-7 years. 3
- GnRH agonists and antagonists should be limited in duration due to bone density concerns unless add-back therapy is used. 1
When Medical Therapy Fails
- If take-home medications fail to control symptoms after 3 months of adequate trial, consider interventional options such as uterine artery embolization (94% short-term improvement) or definitive surgical management. 1, 3
- Only 7-18% of patients require hysterectomy for persistent symptoms after attempting conservative measures. 1