Each fildena 150 tablet contains an active ingredient called sildenafil citrate. Sildenafil citrate is used to treat male sexual dysfunction (ED). In combination with sexual arousal, sildenafil citrate works by enhancing the circulatory system in the penis to empower the male to erect and maintain. With this drug, it is possible for many men to get rid of their sexual problems very quickly. So you have proved to be very useful in treating your sexual problem. This drug helps in having sex longer like other drugs.