Testosterone Therapy for Women with Hypoactive Sexual Desire Disorder
Primary Recommendation
Transdermal testosterone (1% gel, 5g applied twice weekly) can be considered for postmenopausal women with hypoactive sexual desire disorder (HSDD) who have failed non-hormonal interventions, but it is not FDA-approved for this indication and should be used with caution given limited long-term safety data. 1
Patient Selection Criteria
Who May Benefit
- Postmenopausal women (natural or surgical menopause) with distressing low sexual desire that causes personal distress 1, 2
- Women who have adequate circulating estrogen levels, as testosterone may not be effective without sufficient estrogen 1
- Women who have failed first-line non-hormonal therapies including cognitive-behavioral therapy, pelvic floor physical therapy, and vaginal moisturizers 1
Absolute Contraindications
- Current or history of breast cancer or other hormone-dependent malignancies 1, 3
- Pregnancy or breastfeeding 1
- Women attempting conception, as testosterone suppresses ovarian function 1
Treatment Protocol
Dosing and Administration
- Transdermal testosterone 1% gel, 5g applied twice weekly to dry, intact skin of the abdomen, back, upper thighs, or upper arms 1
- Target testosterone levels in the mid-range of normal female values (not male reference ranges of 500-600 ng/dL) 1
- The testosterone patch (300 mcg/day) has also been studied and shown efficacy, though not FDA-approved 4, 5
Expected Outcomes
- Modest benefit: approximately 1 additional satisfying sexual episode every 2 months compared to placebo 1
- Improvements in sexual desire, arousal, frequency of sexual activity, and reduction in personal distress 4, 5
- Benefits typically emerge within 3-6 weeks of treatment initiation 6
The effect size is small but statistically significant—clinicians must set realistic expectations with patients that testosterone is not a dramatic solution. 1, 2
Monitoring Requirements
Initial Phase (First Year)
- Every 3 months: measure total and free testosterone (can be drawn at any time; peak occurs 6-8 hours post-application), complete blood count, lipid profile, and liver function tests 1, 6
- Assess for virilization symptoms: acne, hirsutism, voice deepening, clitoromegaly 6, 5
Efficacy Assessment
- Reassess clinical response at 3-6 months; if no improvement in sexual desire or function, discontinue therapy 1
- Limit treatment duration to 24 months maximum due to lack of long-term safety data 1
Safety Considerations
Common Side Effects
- Mild facial acne (typically resolves within 2 months of discontinuation) 6
- Increased hair growth 5
- Application site reactions 4
Serious Concerns
- Cardiovascular effects: interim data suggest low rates of cardiovascular events, but long-term safety is not established 5
- Breast cancer risk: not conclusively established, but women with breast cancer history should avoid testosterone 1, 5
- Endometrial effects: available data are reassuring but not definitive 5
Dose-Response Relationship
Women exhibit a bell-shaped dose-response curve for testosterone—exceeding moderate doses does not enhance benefits and may cause aggression, virilization, and other side effects that counteract sexual benefits. 7 This is fundamentally different from men, who show a linear dose-response relationship.
Alternative Treatment Options
FDA-Approved Alternatives (Premenopausal Women)
- Flibanserin 100mg at bedtime daily is the first-line pharmacologic option for premenopausal women with HSDD 1, 3
- Bremelanotide (injectable) is another FDA-approved option for premenopausal HSDD 3
Other Options
- Intravaginal DHEA (prasterone) may improve sexual function in women with concurrent dyspareunia 3
- Vaginal testosterone cream may be a safer alternative to systemic administration, particularly for cancer survivors 3
- Bupropion or buspirone have limited data but may be considered as second-line options 1
Clinical Algorithm
Confirm diagnosis: postmenopausal woman with distressing low sexual desire (HSDD) causing personal distress 1, 2
Rule out contraindications: breast cancer history, pregnancy, breastfeeding, attempting conception 1
Ensure adequate estrogen: testosterone may not work without sufficient circulating estrogen 1
Trial non-hormonal interventions first: cognitive-behavioral therapy, pelvic floor therapy, vaginal moisturizers 1
If non-hormonal therapies fail, consider transdermal testosterone 1% gel 5g twice weekly 1
Monitor every 3 months during the first year: testosterone levels, CBC, lipids, liver function, virilization symptoms 1, 6
Reassess efficacy at 3-6 months; discontinue if no improvement 1
Limit treatment to 24 months maximum due to lack of long-term safety data 1
Critical Pitfalls to Avoid
- Do not prescribe testosterone as first-line therapy—non-hormonal interventions should be attempted first 1
- Do not use testosterone in women with breast cancer history—safety is not established 1, 3
- Do not exceed moderate doses—higher doses do not improve outcomes and may cause harm due to the bell-shaped dose-response curve in women 7
- Do not target male testosterone ranges (500-600 ng/dL)—women require mid-range female values 1
- Do not continue therapy beyond 24 months—long-term safety data are lacking 1
- Do not prescribe without monitoring—every 3-month follow-up is essential during the first year 1, 6
Key Differences from Male Testosterone Therapy
- Women show a bell-shaped (curvilinear) dose-response, whereas men show a linear relationship 7
- Target testosterone levels are mid-range female values, not male ranges 1
- Efficacy is modest (1 additional satisfying episode every 2 months), whereas men with hypogonadism show more robust improvements in sexual function 1, 2
- Long-term safety is not established in women, whereas men have more extensive safety data 1, 2