Treatment of Low Sex Drive in Women (HSDD)
For premenopausal women with hypoactive sexual desire disorder (HSDD), flibanserin 100 mg daily at bedtime is the FDA-approved first-line pharmacologic treatment, though its efficacy is modest—resulting in approximately one additional satisfying sexual event every two months compared to placebo. 1, 2
Initial Assessment and Diagnosis
Before initiating treatment, identify contributing factors that must be addressed:
- Screen for medications that impair sexual desire: SSRIs, SNRIs, beta blockers, narcotics, and hormonal contraceptives 3, 4
- Evaluate medical conditions: cardiovascular disease, diabetes, obesity, hypertension, and menopausal status 3
- Assess psychological factors: depression, anxiety, body image concerns, relationship dissatisfaction, and history of physical or sexual abuse 4, 5
- Use validated screening tools: Brief Sexual Symptom Checklist or Female Sexual Function Index to quantify dysfunction 3, 4
The diagnosis requires that low desire causes marked personal distress, occurs regardless of partner or situation, and is not better explained by another medical/psychiatric condition, relationship problems, or medication effects 2, 5.
Treatment Algorithm
First-Line Pharmacologic Options (Premenopausal Women)
Flibanserin (Addyi):
- Dose: 100 mg once daily at bedtime only 1, 2
- Critical safety warnings: Absolutely no alcohol consumption from bedtime dosing until the following day due to severe hypotension and syncope risk 2
- Contraindicated with moderate/strong CYP3A4 inhibitors (azole antifungals, macrolide antibiotics, HIV protease inhibitors, diltiazem, verapamil) and in patients with liver disease 2
- FDA-approved only for acquired, generalized HSDD in premenopausal women 2
Bremelanotide:
- Alternative FDA-approved option for premenopausal women with HSDD 1, 4
- Administered as subcutaneous injection as needed (melanocortin receptor agonist mechanism) 1
Second-Line/Off-Label Pharmacologic Options
When first-line agents are contraindicated or ineffective:
- Bupropion: Off-label use with limited but supportive data, particularly helpful if concurrent depression or SSRI-induced sexual dysfunction 3, 1, 4, 6
- Buspirone: Off-label option with limited evidence but considered by expert panels 1, 4
- DHEA (prasterone): 10-50 mg daily has shown improvements in sexual desire, arousal, and pain, with FDA approval for vaginal symptoms 4
Non-Pharmacologic Interventions (Essential Components)
These should be implemented alongside or before pharmacotherapy:
For vaginal symptoms contributing to low desire:
- Water-, oil-, or silicone-based lubricants and moisturizers for vaginal dryness and dyspareunia 3, 4
- Vaginal estrogen (creams, rings, tablets) for postmenopausal vaginal atrophy—estriol-containing preparations preferred in breast cancer survivors over estradiol 3
- Ospemifene for postmenopausal dyspareunia (contraindicated in hormone-sensitive cancer history) 1, 4, 6
Physical therapy and mechanical interventions:
- Pelvic floor muscle training improves arousal, lubrication, orgasm, and satisfaction 3, 1, 4
- Vibrators or clitoral stimulatory devices for orgasmic difficulties 1, 4
- Vaginal dilators for vaginismus, stenosis, or scarring 3, 4
Psychotherapy:
- Cognitive behavioral therapy (CBT) has demonstrated efficacy, particularly in cancer survivors 3, 4
- Sexual/couples counseling for relationship factors 3
Lifestyle modifications:
- Regular exercise, stress reduction, adequate sleep, and healthy diet 4
- Address alcohol use, smoking, and obesity 3, 4
Special Population Considerations
Postmenopausal women:
- Flibanserin is not FDA-approved but may be used off-label 1
- Testosterone therapy shows efficacy but lacks FDA approval and long-term safety data 4, 6
- Address vaginal atrophy with local estrogen or ospemifene if no hormone-sensitive cancer history 3, 1, 4
Cancer survivors:
- Avoid hormonal treatments in hormone-sensitive cancer survivors 3, 4
- Estriol-containing vaginal preparations preferred over estradiol in aromatase inhibitor users 3
- Treatment selection must consider cancer type and prior treatments 1, 4
Common Pitfalls and Contraindications
Do NOT use:
- PDE5 inhibitors (sildenafil): Not recommended due to contradictory trial results and lack of efficacy data in women 3, 1, 4
- Flibanserin with any alcohol consumption or CYP3A4 inhibitors 2
- Hormonal therapies in women with hormone-sensitive cancer history without careful risk-benefit discussion 3, 4
Critical safety considerations:
- Flibanserin must be taken only at bedtime; daytime dosing increases hypotension, syncope, and CNS depression risk 2
- If lightheadedness or dizziness occurs with flibanserin, patient must lie down immediately and seek emergency care if symptoms persist 2
- Discontinue SSRIs/SNRIs if they are contributing to sexual dysfunction 3
Setting Realistic Expectations
Counsel patients that current pharmacologic treatments have limited efficacy—flibanserin produces approximately one additional satisfying sexual event every two months 1. A combined approach addressing biological, psychological, and relationship factors yields better outcomes than pharmacotherapy alone 3, 4.