The active chemical drug reserpine is obtained from

Options

A. Datura
B. Rauwolfia
C. Atropa
D. Papaver

Explanation

**Step-by-Step Solution:**

1. **Identify the Drug**: The question asks about the active chemical drug called reserpine.

2. **Review the Options**: We need to look at the provided options to determine which plant is the source of reserpine.

3. **Research the Source of Reserpine**: Reserpine is known to be derived from certain plants. It is important to know the specific plant that produces this chemical.

4. **Identify the Correct Plant**: The correct plant that produces reserpine is Rauwolfia vomitoria. This plant is significant in traditional medicine, particularly in India.

5. **Understand the Uses of Reserpine**: Reserpine is used to treat conditions such as hypertension (high blood pressure) and anxiety. It acts as a vasodilator, helping to lower blood pressure.

6. **Eliminate Incorrect Options**:
- Option A refers to a member of the potato family, which is not related to reserpine.
- Option C (Atropa belladonna) also belongs to the potato family and does not produce reserpine.
- Option D (Poppy plant) is known for opium and does not relate to reserpine.

7. **Conclude the Answer**: After analyzing the options and confirming the source of reserpine, we conclude that the correct answer is option B, Rauwolfia.

**Final Answer**: The active chemical drug reserpine is obtained from Rauwolfia (specifically Rauwolfia vomitoria).

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