Question

Example for polyene antifungal antibiotic.

• A. Clotrimazole
• B. Ketoconazole
• C. Amphotericin
• D. Griseofulvin

Hint:

Polyene = Many double bonds. Amphotericin B and Nystatin are the main ones.

Answer 1

The Correct Option is C

Step 1: Concept
Antifungal agents are classified based on their chemical structure and mechanism of action.

Step 2: Meaning
Polyene antibiotics contain a large macrocyclic ring with multiple conjugated double bonds.

Step 3: Analysis
Clotrimazole and Ketoconazole are azoles. Griseofulvin is a benzofuran derivative. Amphotericin B (and Nystatin) are the classic examples of polyene antibiotics.

Step 4: Conclusion
Consequently, Amphotericin is the correct example of a polyene antifungal agent.

Final Answer: (C)