Vidalista 20 is usually when a man suffers from erectile dysfunction. Then this is the drug for his compromise. Vidalista 20 Mg is taken one hour before sex. The effect lasts for 36 hours after taking it. Vidalista 20mg is widely used by men. It is advisable to keep away from small children and pets. Vidalista 20 must be taken once in 24 hours.