Tadacip is used to treat ED problems in men. The tadalafil present in this medicine relaxes the muscles by increasing the blood flow in the penile arteries. This medicine should only be taken by men above 18 years of age. The effect of this medicine is observed for about 4-5 hours. This medicine should be taken in proper amount once a day as per doctor's advice, this medicine improves your sex life. Alcohol should not be consumed while using this medicine.