Fildena XXX 100 treats impotence in men. ED is caused by an abnormal flow of blood in the male genital organ. As a result, this pill aids in the smooth passage of blood through the capillaries in the male sex organ. Sildenafil salt, included in 100 mg of Fildena XXX, is also used to treat pulmonary hypertension in men. Fildena XXX 100 mg treats erectile dysfunction (ED) in males. ED, or impotence, is caused by the difficulties in obtaining and maintaining an erection during sexual engagement. Sildenafil citrate is the active ingredient in this medication. Fortune Healthcare makes this medication.