Which of the following drug is extracted from the latex of poppy plant Papaver somniferum, generally taken by snorting and injection, is a depressant and slows down body functions?

Options

A. Cocaine
B. Hashish
C. Barbiturate
D. Heroin

Explanation

To solve the question regarding which drug is extracted from the latex of the poppy plant (Papaver somniferum), generally taken by snorting and injection, and acts as a depressant, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Source Plant**: The question specifies the drug is extracted from the latex of the poppy plant, scientifically known as *Papaver somniferum*. This is crucial as it narrows down the options to drugs derived from this plant.

2. **Review the Options**: The options provided include:
- Cocaine (from *Erythroxylum coca*)
- Hashish (from cannabis plants)
- Barbiturates (synthetic sedatives)
- Heroin (from *Papaver somniferum*)

3. **Analyze Each Drug**:
- **Cocaine**: Derived from the coca plant, not from poppy. It is a stimulant and affects the central nervous system (CNS) by causing hallucinations.
- **Hashish**: Derived from cannabis plants. It is typically inhaled or ingested orally, not related to the poppy plant.
- **Barbiturates**: These are synthetic sedatives used to treat insomnia and depression but are not derived from poppy plants.
- **Heroin**: This is an opiate drug extracted from the latex of the poppy plant (*Papaver somniferum*). It is known to be taken by snorting and injection and acts as a depressant, slowing down body functions.

4. **Conclusion**: Based on the analysis, the correct answer is **Heroin**, as it meets all the criteria mentioned in the question.

### Final Answer:
The drug extracted from the latex of the poppy plant (*Papaver somniferum*), generally taken by snorting and injection, and acts as a depressant, is **Heroin**.

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