Men with erectile dysfunction (ED) can benefit greatly from the widely used and very successful drug fildena. Because Sildenafil Citrate, its active ingredient, relaxes blood arteries and increases blood flow to the penis. Men can participate in sexual activities by using this to assist them get and keep an erection. fildena is available in many strengths, such as fildena. Men tend to prefer the pill form of the prescription because it is simpler to take and acts more quickly than standard tablets.