Question

Which of the following is an example of narrow spectrum antibiotics?

• A. Amoxicillin
• B. Ampicillin
• C. Chloramphenicol
• D. Penicillin

Hint:

Narrow spectrum antibiotics are preferred when the causative bacteria are known, as they reduce the risk of antibiotic resistance.

Answer 1

The Correct Option is D

Step 1: Understand narrow spectrum antibiotics.
Narrow spectrum antibiotics are effective against a limited range of bacteria, usually either Gram-positive or Gram-negative bacteria only.
Step 2: Analyze the given options.
(A) Amoxicillin: It is a broad spectrum antibiotic effective against both Gram-positive and Gram-negative bacteria.
(B) Ampicillin: It is also a broad spectrum antibiotic.
(C) Chloramphenicol: It is a broad spectrum antibiotic with wide antibacterial activity.
(D) Penicillin: It is a narrow spectrum antibiotic mainly effective against Gram-positive bacteria.
Step 3: Conclusion.
Penicillin is an example of a narrow spectrum antibiotic.