Dapoxetine for Premature Ejaculation
Dapoxetine is the only SSRI specifically approved for on-demand treatment of premature ejaculation, dosed at 30 mg or 60 mg taken 1-3 hours before sexual activity, with the 60 mg dose providing superior efficacy (3.0-fold increase in IELT vs 2.5-fold with 30 mg). 1
Dosing Recommendations
Starting Dose and Titration
- Begin with dapoxetine 30 mg taken on-demand, 1-3 hours before anticipated sexual intercourse 1
- Increase to 60 mg if the 30 mg dose provides insufficient response and is well-tolerated 1
- The 60 mg dose demonstrates greater efficacy, particularly in men with baseline IELT <30 seconds (4.3-fold increase vs 3.4-fold with 30 mg) 1
Timing and Administration
- Take 1-3 hours before sexual activity for optimal plasma concentrations 2, 3
- This is an on-demand regimen, not daily dosing 1
- Dapoxetine is effective from the first dose, unlike traditional SSRIs that require daily administration 4
Efficacy Data
Objective Measures
- 30 mg dose increases IELT by 2.5-fold over baseline (from ~0.9 minutes to 2.0-2.7 minutes geometric mean) 1, 2, 3
- 60 mg dose increases IELT by 3.0-fold over baseline (from ~0.9 minutes to 2.3-3.1 minutes geometric mean) 1, 2, 3
- Both doses significantly outperform placebo (1.6-fold increase) across all studies 2
Patient-Reported Outcomes
- All Premature Ejaculation Profile (PEP) domains improve significantly: perceived control over ejaculation, satisfaction with sexual intercourse, personal distress, and interpersonal difficulty 2, 5
- Clinical Global Impression of Change shows significant improvement vs placebo (P<0.001) 2, 5
Safety Profile
Common Adverse Events (Dose-Dependent)
- Nausea: 8.7% (30 mg) and 20.1% (60 mg) vs placebo 4
- Dizziness: 3.0% (30 mg) and 6.2% (60 mg) 4
- Headache: 5.9% (30 mg) and 6.8% (60 mg) 4
- Diarrhea: 3.9% (30 mg) and 6.8% (60 mg) 4
Discontinuation Rates
- Treatment discontinuation due to adverse events: 1.7% (30 mg) and 5.1% (60 mg) vs 0.3% placebo 3
- Long-term discontinuation reaches 90% at 2 years, primarily due to cost (29.9%) and disappointment with on-demand nature (25%), not safety concerns 1
Important Safety Considerations
- No evidence of anxiety, akathisia, suicidality, mood changes, or discontinuation syndrome following abrupt withdrawal 2
- Can be safely combined with PDE5 inhibitors for concomitant erectile dysfunction 1
Clinical Decision Algorithm
First-Line Recommendation
Dapoxetine is recommended as a first-line approved on-demand treatment option for lifelong premature ejaculation 1
When to Choose Dapoxetine Over Other SSRIs
- Patient prefers on-demand dosing rather than daily medication 1
- Infrequent sexual activity where daily SSRI exposure is undesirable 1
- Desire for regulatory-approved medication specifically for PE (available in most countries except USA) 1
When to Consider Alternatives
- If cost is prohibitive: Consider off-label daily SSRIs (paroxetine 10-20 mg daily provides 8.8-fold IELT increase) 1, 6
- If systemic side effects are concerning: Consider topical lidocaine/prilocaine spray (6.3-fold IELT increase with minimal systemic effects) 1
- If partial response to dapoxetine: Consider combination with PDE5 inhibitors, which enhances confidence and sexual satisfaction 1
Critical Caveats
Geographic Availability
- Dapoxetine is NOT approved in the USA; off-label SSRIs remain the only option for American patients 1
- Widely available in Europe, Asia-Pacific, and other regions 1
Treatment Expectations
- PE typically returns upon discontinuing therapy; this is likely a chronic condition requiring ongoing treatment 1
- Patients should be counseled that this is symptomatic treatment, not curative 1