Vidalista 80 medicine is used to treat erectile dysfunction, otherwise called as ED or male impotence in men. Vidalista pills are one of many Erectile Dysfunction medications that can help increase blood flow to the penis. This medicine should be used only once in a day otherwise there may be damage in the body. Vidalista will last for up to 36 hours and is not intended for daily use. Some men report that Tadalafil tablets are less effective after a large or heavy meal.