Which of the following antacids prevent the release of hydrochloric acid from the stomach wall

Options

A. Renitidine
B. Cimetidine
C. omeprazole
D. All the three

Answer

To answer the question "Which of the following antacids prevent the release of hydrochloric acid from the stomach wall?", we will analyze the options provided and the mechanisms of action for each antacid mentioned.

### Step-by-Step Solution:

1. **Identify the Antacids**:
- We need to identify the antacids mentioned in the question. The video transcript discusses three antacids: Ranitidine, Cimetidine, and Omeprazole.

2. **Understand the Mechanism of Action**:
- **Ranitidine**: This is an H2 receptor antagonist. It works by blocking the histamine H2 receptors in the stomach lining, which reduces the secretion of hydrochloric acid. Therefore, it prevents the release of hydrochloric acid.
- **Cimetidine**: Similar to Ranitidine, Cimetidine is also an H2 receptor antagonist. It reduces the production of hydrochloric acid by blocking histamine receptors, thus preventing excess acidity in the stomach.
- **Omeprazole**: This is a proton pump inhibitor (PPI). It inhibits the proton pump in the stomach lining, which is responsible for the final step in the secretion of hydrochloric acid. By doing this, it effectively decreases the amount of acid produced in the stomach.

3. **Conclusion**:
- All three antacids mentioned (Ranitidine, Cimetidine, and Omeprazole) prevent the release of hydrochloric acid from the stomach wall through different mechanisms. Therefore, the correct answer to the question is that all three are effective antacids.

4. **Final Answer**:
- The correct option is **D: All of the above**.