Sildenafil citrate, the active compound in both these treatments was the very first ingredient that was approved for the treatment of erectile dysfunction. It was first synthesised by the pharmaceutical company Pfizer in England, while trying to find a medication that could treat angina and pulmonary hypertension. They quickly realised its potential for sexual dysfunction and pivoted their research in this direction.
This treatment is a generic medication that is used to manage erectile dysfunction (ED) in men. It is part group of medicines called PDE5 inhibitors. The active ingredient, which is sildenafil citrate, dates back to the late 1980s.

