Quick Answer
Duration: 4-6 hours for most men
Onset: 30-60 minutes (faster on empty stomach)
Peak effect: 1-2 hours after taking
Sildenafil Timeline
0-30 MIN
Absorption
Sildenafil is absorbed into your bloodstream. Take on an empty stomach for fastest onset.
30-60 MIN
Onset
Effects begin. You may notice easier erections with stimulation.
1-2 HOURS
Peak Effect
Maximum concentration in blood. Strongest effects during this window.
4-6 HOURS
Effective Window
Sildenafil remains effective. Effects gradually diminish after this.
What Affects Duration?
- Food: Fatty meals delay absorption by 1+ hour and may reduce effectiveness
- Age: Older men may metabolize slower (longer duration)
- Dose: Higher doses (100mg vs 50mg) may last slightly longer
- Metabolism: Individual variation affects everyone differently
- Alcohol: Moderate alcohol is fine; excess can reduce effectiveness
Want Longer Duration?
If 4-6 hours isn't enough, consider tadalafil (generic Cialis), which lasts up to 36 hours. Or take daily low-dose tadalafil for continuous coverage.
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