Vidalista 20 is useful in relieving erectile dysfunction in men. An ingredient called tadalafil plays an important role in this medicine. This medicine helps to increase the blood flow in the penis. This medicine sustains erection for a long time. The effect of this medicine can last up to 36 hours. This medicine should not be taken by women and children. It is advisable to take this medicine on prescription as per the advice of the doctor. So visit our online store – vidalista.us.