depressant

DEFINITIONS OF: depressant

Types:: show 9 types...; hide 9 types...; chloral hydrate
a colorless crystalline drug used as a sedative; irritates the stomach and can be addictive; Doriden, glutethimide
sedative (trade name Doriden) used to treat some sleep disorders; sedative-hypnotic, sedative-hypnotic drug
a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep; barbiturate
organic compound having powerful soporific effect; overdose can be fatal; Placidyl, ethchlorvynol
a mild sedative-hypnotic drug (trade name Placidyl); knockout drops
chloral hydrate in combination with alcohol; usually administered surreptitiously to make the drinker unconscious; Quaalude, methaqualone
sedative-hypnotic drug (trade name Quaalude) that is a drug of abuse; thalidomide
a sedative and hypnotic drug; withdrawn from sale after discovered to cause severe birth defects because it inhibits angiogenesis; antianxiety agent, ataractic, ataractic agent, ataractic drug, tranquilizer, tranquilliser, tranquillizer
a drug used to reduce stress or tension without reducing mental clarity

Type of:: drug of abuse, street drug
a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction; medicament, medication, medicinal drug, medicine
(medicine) something that treats or prevents or alleviates the symptoms of disease

Synonyms: ataractic, ataraxic, sedative, tranquilising, tranquilizing, tranquillising, tranquillizing
tending to soothe or tranquilize; narcotic, narcotising, narcotizing
inducing stupor or narcosis; relaxant
tending to relax or relieve muscular or nervous tension; hypnagogic, hypnogogic, somniferous, somnific, soporiferous, soporific
sleep inducing

Antonyms:: stimulative
capable of arousing or accelerating physiological or psychological activity or response by a chemical agent; stimulating
rousing or quickening activity or the senses; adrenocorticotrophic, adrenocorticotropic
stimulating or acting on the adrenal cortex; analeptic
stimulating the central nervous system; excitant, excitative, excitatory
(of drugs e.g.) able to excite or stimulate; irritating, irritative
(used of physical stimuli) serving to stimulate or excite; stimulant, stimulating
that stimulates; show more antonyms...

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