Management of Hot Flashes in Perimenopausal Women

Rationale for Estrogen-Only Therapy with Mirena IUD

• The levonorgestrel-releasing intrauterine system (Mirena) provides sufficient local progestogen to protect the endometrium, eliminating the need for additional systemic progestogen when adding estrogen therapy 1, 2
• Estrogen is the most effective treatment for vasomotor symptoms (hot flashes), with a reduction in symptoms of 80-90% 2

Recommended Treatment Approach

• Transdermal formulations (patches) are preferred over oral estrogen due to a lower risk of venous thromboembolism and stroke 1, 2

Important Considerations

• Hormone therapy should be prescribed for symptom relief rather than prevention of chronic conditions 1, 3

Non-Hormonal Alternatives

• SSRIs/SNRIs such as venlafaxine (37.5-75mg/day) or paroxetine (10-12.5mg/day) can reduce hot flash frequency and severity by 37-65% 2, 4
• Gabapentin (900mg/day in divided doses) can reduce hot flash severity by approximately 46% 2
• These medications typically require lower doses for hot flash management than for their primary indications 4

Common Pitfalls to Avoid

• Prescribing additional oral progestogens when a Mirena IUD is already in place, which would be unnecessary and increase risks 2
• Using hormone therapy for prevention of chronic conditions rather than symptom management 1, 3
• Using custom compounded bioidentical hormones, which lack data supporting claims of greater safety or efficacy 1, 2