when viagra works

Posted by admin on August 26, 2007

Sometimes, Viagra doesn\’t cause the results that are supposed to happen in males. This is infrequent, but possible. There are many reasons for this, and it is important to know all the options before buying this medication. Some people don\’t trust that it can work for them, and this makes it harder to prescribe the treatment. Viagra works when the man is sexually excited. Because the medication works to renew the chemical imbalance in the brain, it should be taken 30 minutes to an hour before having sex, and will look no uncommon to an erection that has occurred without the help of Viagra. Since Viagra was introduced in 1993 it has an 80 percent success rate with the maximum dose. For the people who didn