A) Amphetamine-a stimulant
B) Morphine - an opiate narcotic
C) LSD - a hallucinogen
D) Cocaine - a sedative/tranquillizer
Correct Answer: D
Solution :
Sedative help to overcome mental irritability and excitement, assuage pain and lower the activity causing drowsiness or sleep, eg, barbiturates, furazepam, etc, while tranquilizers are drugs with calming and soothing effect, eg, diazepam, nitrazepam, etc. Cocaine is a local anaesthetic, vaso constrictor and powerful stimulant obtained from dried leaves of Erythroxylon coca (coca plant). It is not a sedative or tranquilizer.
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