Vidalista black 80mg is useful in relieving sexual problems in men such as erectile dysfunction. Tadalafil is the main ingredient in this medicine. This medicine increases the speed of blood in the penis. This medicine maintains the erection during intercourse for a long time. This medicine should not be taken by women and children, if taken, it has bad effects. The effect of this medicine can last for 4 to 6 hours. This tablet should be taken on prescription as advised by a doctor. So visit our store – vidalista.us.