Which of the following is used as an antacid ?

Options

A. Ampicillin
B. Omeprazole
C. Lansoprazole
D. Both 2 & 3

Answer

To determine which of the given options is used as an antacid, we need to analyze each option based on their functions and classifications.

### Step-by-Step Solution:

1. **Understanding Antacids**:
- Antacids are substances that neutralize stomach acidity. They are typically basic compounds that help relieve discomfort caused by excessive stomach acid.

2. **Analyzing the Options**:
- **Option 1: Ampicillin**
- Ampicillin is a penicillin antibiotic used to treat bacterial infections. It does not have any antacid properties and is not used to neutralize stomach acid. Therefore, it is not an antacid.

- **Option 2: Omeprazole**
- Omeprazole is classified as a proton pump inhibitor (PPI). It works by reducing the production of stomach acid, which helps treat conditions like acid reflux and ulcers. Although it reduces acidity, it is not a traditional antacid but serves a similar purpose in managing acidity.

- **Option 3: Lansoprazole**
- Lansoprazole is also a proton pump inhibitor similar to omeprazole. It reduces the amount of acid produced in the stomach and is used to treat ulcers and gastroesophageal reflux disease (GERD). Like omeprazole, it is not a traditional antacid but functions to lower acidity.

3. **Conclusion**:
- Both omeprazole and lansoprazole are used to manage stomach acidity, making them relevant to the question of antacids. Since the question asks for which of the following is used as an antacid, the correct answer is that both options 2 and 3 are used in this context.

4. **Final Answer**:
- The correct answer is **Option 4: Both 2 and 3 (Omeprazole and Lansoprazole)**.