Filitra 20 pills are used for treating erectile dysfunction (impotence) in men. This condition in men is an inability for achieving or maintaining a hard penile that is suitable for sexual activity. This condition in men takes place due to insufficient blood flow into the penile. The medicine relaxes the blood vessels in the penile and it enhances blood flow and leads to a penile erection. However, the medicine will only work if you are sexually aroused.