Sildenafil Citrate the main ingredient in Fildena Super Active, is a powerful pill. The pill is designed to help men who are having trouble getting and maintaining an erection. The enzymatic reaction of PDE-5 is accelerated as it prevents the phosphodiesterase enzyme from doing its full job.The increased reactivity of the PDE-5 enzyme causes the blood vessels and tissues to dilate, allowing for a hard erection. Fildena can help men with erectile dysfunction achieve and maintain an erection. Contains sildenafil citrate as an ingredient.