Sildenafil, commonly known by the brand name Viagra, typically lasts for about 4 to 5 hours after taking a dose. The duration of action can vary slightly among individuals based on factors such as metabolism, age, and overall health.
After ingestion, sildenafil begins to work within approximately 30 to 60 minutes, reaching peak effectiveness within this timeframe. During this period, the medication helps increase blood flow to the penis, facilitating the ability to achieve and maintain an erection when sexually stimulated.
It's important to note that sildenafil does not continuously cause an erection for the entire duration of its effectiveness. Sexual arousal is still necessary to achieve an erection, as sildenafil enhances the body's natural response to sexual stimulation by increasing blood flow to the penis.
For most individuals, the effects of sildenafil gradually diminish after 4 to 5 hours, although some men may experience effects lasting slightly longer or shorter depending on individual factors. It's recommended not to take more than one dose of sildenafil within a 24-hour period to avoid potential side effects and ensure safety.
If you have concerns about how long sildenafil lasts or its effectiveness in your case, discussing with a healthcare provider can provide personalized guidance and recommendations based on your health and needs.