Viagra 100 mg medicine is the recommended dosage for those men who are actually suffering from erection issues continuously. It is an FDA-approved solution for men using to cure the problem of erectile issues and impotence. Most men buy Viagra 100 mg online and use it with a doctor’s approval as being a safe result of erection. Viagra is a component of the Sildenafil Tablet and belongs to the PDE 5 inhibitors group which takes a measure action to increase more required amount of blood into the penis and helps to maintain a long-lasting erection without any delay.