Gel for erectile dysfunction Because it works so well to treat male erectile dysfunction, cenforce professional is utilized extensively. Unlike ingestible pills, the jelly can be easily scooped out of the teaspoon or placed in the mouth and eaten. Sildenafil citrate is the active ingredient in Cenforce. It belongs to the family of phosphodiesterase type 5 vasodilators. These drugs work because they enlarge blood vessels all over the body, especially in the vaginal areas. An erection results from more blood being able to flow as a result of this. Cenforce is not an aphrodisiac; it can only be used to generate an erection.