Vigora 50 is an effective drug used to treat impotence in men. Sildenafil citrate present in this medicine works by increasing the blood flow in the blood vessels of the penis. This medicine should be used as advised by your doctor. This medicine is for men only. Alcohol should not be consumed while using this medicine. This medicine should be taken only once in 24 hours. The effect of this medicine usually lasts for 3-4 hours. This medicine should be used 1 hour before planned intercourse. You can buy vigora 50 online from our pharmacy.