There are a lot of reasons why people experience erectile dysfunction. Diabetes, stress, heart problems and old age are just some of these causes. That is why there are a large number of individuals seeking for treatment to this problem. It will be really frustrating to not finish a sexual intercourse with your partner, which adds to insecurity, unhappiness and loss of confidence. Good thing Sildenafil was approved by the FDA in 1998 to help solve the problems of people with ED. Originally researched by Pfizer to be a treatment for hypertension, its effects have not been favorable to its original purpose, yet they noticed that it helped induce penile erections which is why they focused in marketing the product for such use. Since then it started to gain publicity all around the world and is currently used by lots and lots of people. It has become so famous that people also started to give it nicknames such as “Vitamin V” and “The Blue Pill”.
Viagra has a patent that will expire until 2013. But there are also products that have a different generic name but with similar effects that were launched since Viagra earned so much popularity. One of the other brands is Levitra, which has the generic name of Vardenafil . Another one is Cialis, with the generic name of Tadalafil . They just vary in half life, packaging and dosages but more or less share the same mechanism of action and side effects. Now people who have ED can gain back their confidence, happiness and satisfaction.