Fildena 100 enhances blood flow to the penile tissues by utilizing Sildenafil Citrate, a potent phosphodiesterase type 5 (PDE5) inhibitor. During sexual stimulation, nitric oxide is released in the penis, stimulating the production of cyclic guanosine monophosphate (cGMP). This compound relaxes smooth muscles and dilates blood vessels, allowing more blood to enter the erectile tissue. Fildena blocks the PDE5 enzyme that normally breaks down cGMP, maintaining higher levels for a longer duration. As a result, the penis remains engorged and firm, leading to a stronger and longer-lasting erection. This improved blood circulation significantly enhances overall sexual performance and satisfaction.