Drugs which prevent the formation of acid in the stomach is / are

Options

A. omepyrazols
B. penicilin
C. phenylbutazone
D. magnesium trisilicate

Answer

To solve the question "Drugs which prevent the formation of acid in the stomach is / are", we need to identify the drugs from the given options that act as antacids or proton pump inhibitors. Here’s a step-by-step solution:

### Step 1: Understand the Function of Antacids
Antacids are substances that neutralize stomach acidity. They are commonly used to relieve symptoms of heartburn, indigestion, and acid reflux. Proton pump inhibitors (PPIs) are a class of drugs that reduce stomach acid production.

**Hint:** Look for drugs that are specifically mentioned as antacids or proton pump inhibitors.

### Step 2: Analyze Each Drug Option
1. **Omeprazole**: This drug is a proton pump inhibitor. It works by blocking the proton pump in the stomach lining, which reduces the production of stomach acid. Therefore, it prevents excess acid formation.

**Hint:** Identify if the drug is a proton pump inhibitor or has similar properties.

2. **Penicillin**: This is an antibiotic used to treat bacterial infections. It does not have any role in reducing stomach acid production.

**Hint:** Consider whether the drug is used for treating infections or for reducing stomach acid.

3. **Phenylbutazone**: This drug is a non-steroidal anti-inflammatory drug (NSAID) used for pain relief and inflammation. It does not function as an antacid.

**Hint:** Determine if the drug is primarily used for pain relief or inflammation rather than acid reduction.

4. **Magnesium Trisilicate**: This is an antacid that neutralizes stomach acid and is used to relieve symptoms of heartburn and indigestion. It effectively reduces excess acid in the stomach.

**Hint:** Check if the drug is known for its antacid properties.

### Step 3: Conclusion
From the analysis:
- **Omeprazole** (Option 1) and **Magnesium Trisilicate** (Option 4) are the drugs that prevent the formation of acid in the stomach.
- **Penicillin** (Option 2) and **Phenylbutazone** (Option 3) do not serve this purpose.

### Final Answer
The drugs which prevent the formation of acid in the stomach are **Omeprazole** and **Magnesium Trisilicate**.