NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

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Which chemotherapy class does Paclitaxel belong to?

  1. M phase

  2. G1 phase

  3. S phase

  4. G2 phase

The correct answer is: M phase

Paclitaxel belongs to the M phase chemotherapy class because it targets the mitotic division of cells by binding to the protein tubulin, which is crucial for cell division. Option B, G1 phase, is incorrect because Paclitaxel does not target the resting phase of the cell cycle. Option C, S phase, is incorrect because Paclitaxel does not target DNA synthesis. Option D, G2 phase, is incorrect because Paclitaxel does not target the preparation phase of cell division.