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Men's Sexual Health

How Long Does Viagra Stay in Your System?

Lauren Okafor | MD

Medically reviewed by Lauren Okafor | MD, The Frank H Netter MD School of Medicine, Loyola University Medical Center on August 22nd, 2026.

Viagra typically stays in your system for 4-5 hours, though traces can be detected for up to 24 hours. The medication reaches peak concentration in your blood within 30-120 minutes after taking it. Your liver metabolizes sildenafil citrate, Viagra's active ingredient, at a rate that reduces blood levels by half every 3-5 hours. Factors like age, kidney function, and other medications can extend this timeframe. Men over 65 or those with liver problems may process Viagra more slowly, keeping it active longer. While the drug's effects on erectile function usually last 4-6 hours, complete elimination from your body occurs within 24-48 hours for most people.

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