Filagra Double 200 tablet is used to treat impotence in men. This medicine is only for men above 18 years of age. This medicine contains sildenafil citrate, which increases blood flow to the penile arteries and relaxes the muscles. This medicine should be used on an empty stomach so that you can get quick results from the medicine. This medicine can be used for a strong erection before sexual activity. The effect of this medicine is observed for 30 minutes. This medicine should not be used once a day.