Fildena CT 100mg contains the active ingredient sildenafil citrate, which is a type of medication known as a phosphodiesterase type 5 (PDE5) inhibitor. It works by blocking the action of an enzyme called phosphodiesterase type 5. This enzyme is responsible for breaking down a chemical called cyclic guanosine monophosphate (cGMP) in the body.

During ****ual arousal, the body releases nitric oxide, which leads to the production of cGMP. cGMP relaxes the smooth muscles of the arteries in the ****, allowing blood to flow into the ****ile tissues, which results in an ****ion.