any substance whose chemical action can damage body structures or impair body function

a poisonous substance produced by bacteria, animals, or plants that acts by changing the normal metabolism cells or by destroying them

the misuse any substance to produce a desired effect

when a patient takes a toxic or lethal dose of a substance

swallowing

a substance that will counteract the effects of a particular poison

a person who routinely misuses a substance may need increasing amounts of it to achieve the same result. they are developing ______ to the substance.

a person who has an overwhelming desire or need to continue using the substance

a substance that decreases activity and excitement

induces sleep

vomiting

an agent that produces false perceptions in any one of the five senses

vomiting blood

a drug that produces sleep or altered mental consciousness

a subset of the opioid family, referring to natural, non-synthetic opioids

a synthetically-produced narcotic medication, drug, or agent similar to the opiate morphine, but not derived from opium; used to relieve pain

an agent that produces an excited state