Vidalista 20mg is found in as an active ingredient called tadalafil. Which is an effective medicine for the treatment of men suffering fromerectile dysfunction. The effect of vidalista 20 lasts for 36 hours. The drug is manufactured at Centurion Laboratory in India. This is called a very long time. This drug is known as Weekend Pills. Take vidalista tablet one hour before sexual intercourse. Take this medicine orally with water. Take orally with alcohol-like water.