Fildena 100 is a prescription drug. The main ingredient in sildenafil is found inside this drug. This drug is used to treat the serious problem of erectile dysfunction. This drug increases blood flow to the blood vessels in the penis and keeps the muscles under control. Hence the stimulus for intercourse is obtained. And the process of sexual erection lasts longer. This medicine should be taken only once a day. This medicine should be taken 20 minutes before sexual intercourse. The effect of this drug lasts longer. Visit medypharmacy for more information.