Cenforce 100mg is a medication that belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. It contains sildenafil citrate, an active ingredient also found in the well-known ED medication Viagra. Cenforce 100mg is designed to enhance blood flow to the penis by inhibiting the action of the PDE5 enzyme. By doing so, it promotes the release of nitric oxide, a chemical that helps relax the blood vessels in the penile region.