Affirming the important role entrusted to the International Narcotics Control Board of ensuring, in cooperation with Member States and in line with the Single Convention on Narcotic Drugs of 1961 and the Convention on Psychotropic Substances of 1971, that the use of the drugs listed in those two conventions is limited to medical and scientific use and of preventing their diversion into illicit channels for trafficking and abuse, and the role of the World Health Organization in ensuring the appropriate use of medicines.