The two square inch THC patch delivers a steady release of THC for four to six hours. They are medicated adhesive patches placed on the skin to deliver specific doses. They are effective and discreet and perfect for those who do not like the psychotic effect of THC. It is long-lasting and easy to use. All you need to do is to find a venous spot on your body. Your body heat will activate the release and a small amount of THC will enter your bloodstream. It is excellent for patients who need to manage their chronic pain.