Sildenafil - sil-DEN-a-fil belongs to a group of medication that delay the enzymes called phosphodiesterases from working too quickly. The penis is one of the areas where these enzymes work. Sildenafil is using to treat men who have erectile dysfunction - also called sexual impotence.
By controlling the enzyme phosphodiesterase, sildenafil helps to maintain an erection that is produced when the penis is stroked. Without physical action to the penis, such as that occurring during sexual intercourse, sildenafil will not work to cause an erection.
This drug is available only with your family doctor's prescription, in the following dosage form - s:
Some commonly using brand names are:
In the USA
In Canada