Which of the following pairs are bacteriostatic antibiotics ?

Options

A. Penicillin , tetracycline
B. Erythromycin, chloramphinicol
C. Oflaxacin, Aminoglycosides
D. Tetracycline , chloromphinical

Answer

To determine which pairs of the given antibiotics are bacteriostatic, we need to first understand the definitions and classifications of antibiotics. Here’s a step-by-step solution:

### Step 1: Understand Antibiotics
Antibiotics are substances that can kill or inhibit the growth of bacteria. They are classified into two main categories:
- **Bactericidal Antibiotics**: These antibiotics kill bacteria.
- **Bacteriostatic Antibiotics**: These antibiotics inhibit the growth and reproduction of bacteria without killing them.

### Step 2: Identify the Given Antibiotics
The options provided in the question are:
1. Penicillin
2. Tetracycline
3. Erythromycin
4. Chloramphenicol
5. Ofloxacin
6. Aminoglycosides

### Step 3: Classify Each Antibiotic
Now, we will classify each antibiotic based on whether it is bacteriostatic or bactericidal:
- **Bactericidal Antibiotics**:
- Penicillin
- Tetracycline
- Ofloxacin
- Aminoglycosides

- **Bacteriostatic Antibiotics**:
- Erythromycin
- Chloramphenicol

### Step 4: Identify the Bacteriostatic Pairs
From the classification, we see that the bacteriostatic antibiotics from the options are:
- Erythromycin
- Chloramphenicol

### Step 5: Conclusion
The correct answer to the question "Which of the following pairs are bacteriostatic antibiotics?" is:
- **Erythromycin and Chloramphenicol**

### Final Answer
The correct option is: **Erythromycin and Chloramphenicol**.

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