Viagra 100mg Tablets contain sildenafil citrate, a medicine belonging to the PDE5 inhibitor class. Viagra is indicated for the treatment of erectile dysfunction in adult men. Sildenafil helps improve blood flow to the penis when sexual stimulation occurs, which can help a man achieve and maintain an erection.
Viagra does not directly increase sexual desire and does not produce an erection without sexual stimulation.
Sildenafil inhibits the PDE5 enzyme. During sexual stimulation, this helps support the nitric oxide/cGMP pathway and increases blood flow in penile tissue, assisting the natural erection process.
Viagra should be taken exactly as prescribed by a healthcare professional. The usual recommended starting dose is 50mg, taken when needed approximately 1 hour before sexual activity. Depending on effectiveness and tolerability, the dose may be increased to 100mg or decreased to 25mg. Viagra should not be taken more than once per day.
Do not take Viagra with nitrate medicines such as nitroglycerin or other organic nitrates. Combining sildenafil with nitrates can cause a dangerous decrease in blood pressure.
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