Viagra (50mg x 50 tablets)

Sildenafil is the original medication used to treat erectile dysfunction (ED) in men and was released by Pfizer in 1996. It was the first-ever treatment for ED approved by the FDA. Viagra has continued to be one of the most popular ED medications, with its major competitor being Cialis. Erectile dysfunction is extremely common in men, and it is estimated that over 3 million men in Canada over the age of 40 suffer from it. Viagra works to treat ED quickly by relaxing the smooth muscle which in turn increases blood flow to the penis to keep an erection. Weak blood flow equals a weak erection, therefore, increasing the blood flow will result in a stronger erection and an increase in the ability to maintain it.