Schedule I: High potential for abuse, no accepted medical use in the U.S., or lacks accepted safety for use in treatment under medical supervision. Schedule II: High potential for abuse, may lead to psychological or physical dependence, currently accepted medical use in the U.S. with severe restrictions. Schedule III: Less abuse potential than Schedule I and II drugs, accepted medical use in treatment in the U.S., may lead to moderate or low physical dependence or high psychological dependence.