Which of the following antacids prevent the release of hydrochloric acids from the stomach wall ?

Options

A. Rantidine
B. Cimetidine
C. Omeprazole
D. All of these

Answer

To answer the question "Which of the following antacids prevent the release of hydrochloric acids from the stomach wall?" we will analyze the options provided and their mechanisms of action.

### Step-by-Step Solution:

1. **Understanding Antacids**: Antacids are medications that help neutralize stomach acidity. They are used to treat conditions like heartburn, indigestion, and ulcers by reducing the amount of hydrochloric acid (HCl) produced in the stomach.

2. **Identifying the Options**: The question implies that there are multiple options (A, B, C, D) that need to be evaluated. The video mentions three specific antacids: Ranitidine, Simetidine, and Omeprazole.

3. **Analyzing Ranitidine**:
- Ranitidine is classified as a histamine H2-receptor antagonist. It works by blocking the action of histamine on the stomach's parietal cells, which reduces the secretion of hydrochloric acid.
- Therefore, Ranitidine prevents the release of HCl from the stomach wall.

4. **Analyzing Simetidine**:
- Simetidine is also an H2-receptor antagonist. Similar to Ranitidine, it reduces the production of stomach acid by blocking histamine receptors.
- Thus, Simetidine also prevents the release of HCl from the stomach wall.

5. **Analyzing Omeprazole**:
- Omeprazole is a Proton Pump Inhibitor (PPI). It works by inhibiting the proton pump in the stomach lining, which is responsible for the final step of acid production.
- Consequently, Omeprazole effectively prevents the release of HCl from the stomach wall.

6. **Conclusion**: Since all three medications (Ranitidine, Simetidine, and Omeprazole) prevent the release of hydrochloric acid from the stomach wall, the correct answer to the question is **D) All of these**.