Tadalafil is the main ingredient in vidalista tablets. This tablet is manufactured in Centurion Lab, India. This tablet is used by most men today to treat erectile dysfunction and impotence. It is an oral tablet that is taken with 1 glass of water during sexual intercourse. Vidalista 10 tablets should be taken 30 to 40 minutes before. The effect of this tablet lasts for 36 hours.