Name an alkaloid which is used for the treatment (i) hypertension (ii) malaria fever and (iii) pain

Explanation

To answer the question regarding alkaloids used for the treatment of hypertension, malaria fever, and pain, we can break it down into three parts:

### Step-by-Step Solution:

1. **Identify the Alkaloid for Hypertension:**
- The alkaloid used for the treatment of hypertension is **Reserpine**.
- Reserpine works by depleting the stores of neurotransmitters in the nerve endings, which helps to lower blood pressure.

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