See also ' psychedelic '. Any of a group of central nervous system depressants with the capacity to induce sleep. See also ' sedative '. In the context of international drug control, 'narcotic drug' means any drug defined as such under the 1961 Convention. Also known as major tranquillizers and antipsychotics.
Neuroleptics have low abuse potential.
A generic term applied to opiates and their synthetic analogues, with actions similar to those of morphine, in particular the capacity to relieve pain. The use of any drug in such an amount that acute adverse physical or mental effects are produced. It also covers allied fields such as toxicology and posology . Knowledge of the dose of commonly used drugs is essential to acquire confidence in prescribing. In the context of international drug control, 'psychotropic substance' means any substance, natural or synthetic, or any natural material in Schedule I, II, III or IV of the 1971 Convention.