Vidalista 80 is useful in treating erectile dysfunction in men. The main ingredient in this medicine is called tadalafil. This medicine increases the speed of blood in the penis. This medicine prolongs erection during intercourse. The effect of this medicine can last for 4 to 6 hours. This medicine should not be taken by women and children, if taken it has a bad effect. This medicine should be taken on prescription as advised by a doctor. So visit our store – vidalista.us.