drugmeans any of the following:
drug precursormeans a substance that is controlled and monitored in accordance with Regulation (EC) No 273/2004 of the European Parliament and of the Council and with Council Regulation (EC) No 111/2005;
international organisationmeans an organisation and its subordinate bodies governed by public international law, or any other body which is set up by, or on the basis of, an agreement between two or more countries;
new psychoactive substancemeans new psychoactive substance as defined in Article 1, point 4, of Framework Decision 2004/757/JHA;
participating countrymeans a Member State or a third country which has concluded an agreement with the Union in accordance with Article 54 of this Regulation;
poly-substance usemeans the use of one or more psychoactive substances or types of psychoactive substance, whether illicit or licit, in particular medicinal products, alcohol and tobacco, at the same time as the use of drugs or sequentially within a short period of time of the use of drugs;
United Nations Drug Conventionsmeans the United Nations Single Convention on Narcotic Drugs of 1961 as amended by the 1972 Protocol, the 1971 United Nations Convention on Psychotropic Substances and the 1988 United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
United Nations systemmeans the control mechanism system established by the United Nations Drug Conventions.