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Which agents are classified as macrolides?
Ciprofloxacin, Levofloxacin
Azithromycin, Clarithromycin, Erythromycin
Doxycycline, Minocycline
Vancomycin, Teicoplanin
The correct answer is: Azithromycin, Clarithromycin, Erythromycin
Macrolides are a class of antibiotics that inhibit bacterial protein synthesis. They work by binding to the 50S ribosomal subunit of the bacteria. Ciprofloxacin and Levofloxacin are fluoroquinolones, not macrolides, as they work by inhibiting bacterial DNA synthesis. Similarly, Doxycycline and Minocycline are tetracyclines and do not belong to the macrolide class. Vancomycin and Teicoplanin are glycopeptide antibiotics and also do not belong to the macrolide class. Therefore, the only agents classified as macrolides are Azithromycin, Clarithromycin, and Erythromycin, which is the correct answer.