Tadalafil acts as the active ingredient in Vidalista 20. Vidalista 20mg is taken to you one hour before sexual intercourse. The effect of indigestion lasts for 36 hours. Vidalista 20 Mg is used by men. ED is the best drug to solve the problem. Vidalista 20 is the popular pill for ED. It is important to consult a doctor before taking Vidalista 20. Vidalista 20 must be taken once in 24 hours.