+Vidalista drug is mainly the best drug used by men. Tadalafil acts as the active ingredient in the Vidalista drug. Vidalista drug is taken 1 hour before intercourse. Seek medical advice before taking Vidalista. The Vidalista drug lasts for up to 4 hours after taking it. This is a pill that has this great feature. Vidalista drugs should be kept away from small children and pets.