Viagra 50mg is a sildenafil-based prescription medicine used for the treatment of erectile dysfunction in adult men. The active ingredient, sildenafil citrate, belongs to the PDE5 inhibitor class. It works by increasing blood flow to the penis when sexual stimulation occurs.
Viagra does not automatically produce an erection and does not increase sexual desire. Sexual stimulation is required for sildenafil to produce its intended effect.
During sexual stimulation, sildenafil helps inhibit the PDE5 enzyme. This allows blood vessels in penile tissue to relax and supports increased blood flow, helping an erection occur and remain firm.
Take Viagra exactly as prescribed by your doctor. Official prescribing information states that it is generally taken approximately 1 hour before sexual activity, although it may be taken between 30 minutes and 4 hours beforehand.
Do not take more than one dose in a 24-hour period unless specifically instructed by your healthcare professional.
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