Fildena 100 is a purple colored tablet. It works naturally in erectile dysfunction in men. Sildenafil is a drug known to people. It is a drug used to treat sex. Take the medicine 1 hour before engaging in sexual intercourse. This medicine is more effective on a full stomach. So the erection is sustained for a long time. You take the medicine on impulse. So works in more sex. It increases the blood sufficiently. Take medicine as per your doctor's advice.