Publisher's Synopsis
Viagra is the most well known treatment for erectile dysfunction. It has been used by millions of men over the course of close to 20 years. During this time it has established itself as the leading brand for the effective treatment of impotence. The effects of Viagra can last for up to four hours. It simply means that one can be achieved during that time frame if sexual stimulation is given. Those who take Viagra then have sufficient time for spontaneous sexual intercourse. Four hours is plenty of time for the individual get in the mood for sex without the need to rush.
