Filitra 40 mg is prescribed to men who have difficulty achieving and maintaining an erection sufficient for physical activity. Vardenafil, the active ingredient, works by inhibiting the PDE5 enzyme, which leads to increased levels of cyclic guanosine monophosphate (cGMP). This helps relax the smooth muscles in the erectile tissue, allowing for improved blood flow to the panile and facilitating an erection. https://www.flatmeds.com/product/filitra-40-mg/