Viagra and Impotence

Viagra was the first drug on the market to treat erectile dysfunction. It was developed by the giant pharmaceutical company Pfizer.
It was found by accident. They were looking at drugs to help the heart and realised this drug had an interesting ’side effect’.
Viagra contains the drug sildenafil. This drug is a phosphodiesterase inhibitor. It encourages [...]

Impotence is an age old problem suffered by men throughout the ages. Erectile dysfunction is a new and more specific term for it.
It means failure to get or maintain an erection so you can have sexual intercourse. In the last 10 years thanks to new drug treatments many more men are no longer suffering from [...]