This drug works by increasing the blood flow to the penis by opening up the arteries and this is the way Generic Viagra helps in getting an erection. The Viagra-caused erection is effective after fifteen to sixteen minutes and lasts long enough for sexual satisfaction. Tests have proved that Generic Viagra induced erection in men lasts for about four hours.

As for the efficacy of the drug, taken in conjunction with a variety of other considerations, Generic Viagra induces erections about seventy five percent of the time. The other twenty five percent of the time, the drug does not function due to varied medical reasons.

In conclusion, Generic Viagra is a good choice for people suffering from Ed or other similar diseases chronically or for people from an older age group. For younger and healthier people, other non-medical options exist and this might actually be better for them. Like any other drug, Generic Viagra should also be taken as a medicine as the last option.