NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Prepare for the NAPLEX (North American Pharmacist Licensure Examination) Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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Which agents are classified as macrolides?

  1. Ciprofloxacin, Levofloxacin

  2. Azithromycin, Clarithromycin, Erythromycin

  3. Doxycycline, Minocycline

  4. 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.