Tadalafil acts as an active ingredient in the Vidalista professional drug. Vidalista professional drug is taken 1 hour before intercourse, after which its effect lasts for 36 hours. Vidalista Professional Drug is the best drug for impotence. Vidalista Professional is a widely used drug that allows couples to enjoy their sex life better. Vidalista Professional should be taken only once a day. Vidalista Professional is not to be used by women.