Which of the following is antimicrobial

Options

A. Rantidine
B. Lysozyme
C. Aspirin
D. Equanil

Answer

To determine which of the given options is antimicrobial, we will analyze each option based on its properties and functions.

### Step-by-Step Solution:

1. **Understanding Antimicrobial Agents**:
- An antimicrobial agent is defined as a drug, medication, or substance that kills microorganisms or inhibits their growth.

2. **Analyzing the Options**:
- **Option 1: Ranitidine**:
- Ranitidine is known as an antacid (marketed as Zantac) that reduces stomach acidity. It is primarily used to treat conditions like ulcers and gastroesophageal reflux disease (GERD). It does not have antimicrobial properties.

- **Option 2: Lysozyme**:
- Lysozyme is a naturally occurring enzyme found in various bodily fluids (like saliva and tears). It functions as an antimicrobial agent by breaking down the peptidoglycan in bacterial cell walls, leading to cell death. It is effective against many bacteria and some viruses.

- **Option 3: Aspirin**:
- Aspirin is an antipyretic medication used to reduce fever and relieve pain. It does not possess antimicrobial properties.

- **Option 4: Equanil**:
- Equanil is a tranquilizer that acts on the central nervous system to reduce anxiety and promote calmness. It does not have antimicrobial effects.

3. **Conclusion**:
- After analyzing all the options, the only substance that exhibits antimicrobial properties is **Lysozyme**.

### Final Answer:
**Lysozyme is the antimicrobial agent among the given options.**

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