Vidalista CT 20 mg contains tadalafil as its active ingredient and belongs to a class of drugs known as PDE-5 inhibitors. Immediately after consumption, the medicine becomes active in your body within 30-40 minutes. Tadalafil works by increasing blood flow to the male reproductive organ and helps men achieve and maintain a hard erection to engage in satisfying sexual intercourse. The effects of this drug may vary from person to person. So, don't worry if you don't feel an erection within 30-40 minutes. The medication can guarantee a man having an erection disorder can perform best in bed for long hours.