Fildena 120 mg is a phosphodiesterase (PDE-5) active fix. It contains sildenafil which works in ED and expands the blood flow to the penis by relaxing the muscles in the penile veins in men. You can use this medicine 1 hour before sexual intercourse and enjoy a satisfactory erection. Using this medicine improves your sex life. This medicine works best on an empty stomach so you should use this medicine on an empty stomach. This medicine is recommended only for men aged 18 or older. The effect of this medicine lasts for 4-5 hours, so you should use this medicine as per the doctor's advice.