Viagra 100mg working time: This study demonstrates that

This study demonstrates that, in the majority of these patients with ED, sildenafil remains clinically active 12 hours after administration. Larger studies may be necessary to confirm and clarify the therapeutic window of sildenafil. Sildenafil 100mg can be safe and effective—but only when prescribed and monitored by a healthcare provider. Daily use without supervision increases the risk of side effects and may not be suitable for everyone. The amount of time Sildenafil takes to work varies from person to person, but it normally takes between half an hour and one hour. However, Sildenafil may take longer to start working if you take it with a heavy meal. Its effect may last for about 3-4 hours. By continually increasing blood flow to the privates, Viagra gives you a window of several hours (up to four) in which you can get hard with addition of stimulation. However, just because...