drug - a substance that is used as a medicine or narcotic

general anaesthetic, general anesthetic - an anesthetic that anesthetizes entire body and causes loss of consciousness

intravenous anesthetic - an anesthetic that produces anesthesia when injected into the circulatory system

local anaesthetic, local anesthetic, topical anaesthetic, topical anesthetic, local - anesthetic that numbs a local area of the body

spinal anaesthetic, spinal anesthetic - an anesthetic that is injected into the spine