Filitra 10 is a medication primarily used to treat erectile dysfunction (ED) in men. It contains the active ingredient Vardenafil, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. When a man is sexually stimulated, the body releases nitric oxide, which in turn increases the production of cyclic guanosine monophosphate (cGMP). This substance relaxes the smooth muscles in the blood vessels of the penis, allowing increased blood flow, leading to an erection.