What is the use of ranitidine?

Explanation

**Step-by-Step Solution:**

1. **Definition of Ranitidine:**
- Ranitidine is a medication that belongs to a class of drugs known as H2 (histamine-2) receptor antagonists.

2. **Function of Ranitidine:**
- The primary use of ranitidine is to reduce the production of stomach acid. It achieves this by blocking the action of histamine on the H2 receptors located in the stomach lining.

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