Fildena 120 mg is Ed medicine that is mainly used to treat erectile dysfunction or impotence in men. Fildena 120 contains a basic ingredient called sildenafil citrate. These tablets belong to a class of drugs known as the active ingredient PDE-5 inhibitors. With the help of this ingredient, the blood flow in the blood vessels in the penis of men is increased and it helps in prolonged sex with a strong erection. It is highly recommended to take this medicine with a glass of water. This drug usually gives effective results in 4-6 hours.