Gel for erectile dysfunction Because Oral Jelly Kamagra works so well to treat erectile dysfunction in men, it is a popular choice. Unlike ingestible pills, the jelly can be easily scooped out of the teaspoon or placed in the mouth and eaten. The active ingredient in Kamagra Oral Jelly 100 mg is sildenafil citrate. 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. Although Kamagra Jelly and Super P Force Oral Jelly can cause an erection, it is not an aphrodisiac.