Fildena Super Active is also a drug related to PDE5 and its main active ingredient is Sildenafil Citrate. Fildena Super Active offers the best remedy to overcome erectile dysfunction and enjoy sex without worry failure. Fildena Super Active Drugs contains the active ingredient Sildenafil, which increases blood flow to the penis.it is called a PDE5 inhibitor. When men take it, an erection can last up to half an hour. The erection time can last up to four hours in some cases.