Tadalafil acts as the active ingredient in Vidalista tablets. Vidalista tablets are taken 1 hour before intercourse, after which the effect lasts for 36 hours. Vidalista is one of the best tablets for impotence. Seek medical advice before taking Vidalista. Vidalista is widely used. Vidalista is not a tablet for women to use so women should not use it and consult a doctor if you are still suffering from this type of problem.