<p>The recommended dose of Sildenafil is 50 mg taken approximately 1 hour before sexual activity. However, Sildenafil may be taken anywhere from half an hour to 4 hours before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum 100 mg or decreased to 25 mg. The maximum recommended dosing frequency is once per day.</p>

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<p>Administration</p>

<p>Sildenafil&nbsp;may takes longer time to work if you take it with a heavy meal.</p>