Tadacip, the main ingredient of which is tadalafil, is used to treat impotence in men. This ingredient is very helpful in eliminating this problem in men. This pill increases the blood flow in the blood vessels of the male genital organs and gives you a better erection during sexual activity. Take the pill 30-40 minutes before intercourse for best results. This medicine should be taken only once in 24 hours as this medicine can harm the body even if taken in excess.