Fildena double 200 mg for erectile dysfunction (sometimes referred to as impotence). This problem affects both older and younger men because it can have both psychological and physical causes. The main contains the active ingredient sildenafil citrate, which belongs to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors. With the help of medicine, it is possible to attain an erection again and make an intimate sexual relationship.