central nervous system depressant

cen·tral ner·vous sys·tem de·pres·sant

(sentrăl nĕrvŭs sistĕm dĕ-presănt) Medication used to slow down neuronal activity.

Central nervous system (CNS) depressant

Any drug that tends to reduce the activity of the central nervous system. The major drug categories included in this classification are: alcohol, anesthetics, anti-anxiety medications, antihistamines, antipsychotics, hypnotics, narcotics, sedatives, and tranquilizers.Mentioned in: Methadone