This drug is usually used in the treatment of sexual dysfunction. Sildenafil is a drug used to treat ED in men. It works in maintaining erection naturally. It works to get a strong erection over a long period of time. Take this medicine 30-35 minutes before sexual intercourse. Fildena super active this use works to improve sex life. It has an effect of 4-5 hours with time. Take this medication with a light meal.