Amphetamines are central nervous system stimulatant. barbiturates are

Options

A. CNS stimulants
B. no effect on CNS
C. hallucinogenic
D. CNS, depressant

Answer

**Step-by-Step Solution:**

1. **Understanding Amphetamines**: Amphetamines are classified as central nervous system (CNS) stimulants. They increase alertness, attention, and energy by enhancing the activity of certain neurotransmitters in the brain.

2. **Identifying Barbiturates**: Barbiturates are a different class of drugs compared to amphetamines. They are primarily used as sedatives and anesthetics.

3. **Function of Barbiturates**: Barbiturates act as central nervous system depressants. They slow down brain activity, which can lead to sedation, relaxation, and sleep induction.

4. **Effects of Barbiturates**: When taken, barbiturates can help alleviate anxiety and induce sleep. However, they can also be dangerous due to the risk of overdose and dependence.

5. **Conclusion**: Therefore, while amphetamines stimulate the CNS, barbiturates depress it.

**Final Answer**: Barbiturates are central nervous system depressants.

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