Fildena 100 is used to treat erectile dysfunction and sexually transmitted diseases. This drug contains an active ingredient called sildenafil citrate. With the use of which the tight muscles gradually become loose and blood flow in the muscles increases. Which helps in getting erection. The drug can be used safely by men between the ages of 18 and 65. Taking more than one tablet in the lure of better results is harmful. This should be taken on an empty stomach or with a meal.