Which substance is listed as a depressant?

Which substance is listed as a depressant?

• A. Ambarbital
• B. LSD
• C. Nicotine
• D. Methamphetamine

Answer: (A)

Depressants slow the central nervous system, reducing arousal and slowing thinking, movement, and reflexes. Ambarbital is a barbiturate, a type of depressant that enhances the brain’s inhibitory signals (GABA), producing sedation, sleep, and anxiety reduction. LSD is a hallucinogen that alters perception, nicotine is a stimulant that increases alertness and arousal, and methamphetamine is a potent stimulant that amplifies energy and euphoria. Since the question asks which substance is a depressant, ambarbital is the correct choice.

Depressants slow the central nervous system, reducing arousal and slowing thinking, movement, and reflexes. Ambarbital is a barbiturate, a type of depressant that enhances the brain’s inhibitory signals (GABA), producing sedation, sleep, and anxiety reduction. LSD is a hallucinogen that alters perception, nicotine is a stimulant that increases alertness and arousal, and methamphetamine is a potent stimulant that amplifies energy and euphoria. Since the question asks which substance is a depressant, ambarbital is the correct choice.