Filagra Oral Jelly is a medication used to treat erectile dysfunction (ED). It contains sildenafil citrate, which is also the active ingredient in Viagra. Filagra Oral Jelly is designed to offer a more flexible and fast-acting option for managing ED. Sildenafil inhibits PDE5, an enzyme that degrades cyclic GMP, a chemical that relaxes smooth muscles and increases blood flow to the penis. This helps improve erectile function when sexually aroused.