NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What is a common adverse effect associated with Morphine?

  1. QT prolongation

  2. Pruritis

  3. Respiratory depression

  4. CNS toxicity

The correct answer is: Pruritis

Pruritis, or severe itching, is a common adverse effect associated with Morphine due to its ability to release histamine. This can lead to severe discomfort for patients. QT prolongation and CNS toxicity are also potential adverse effects, but not as commonly associated with Morphine as respiratory depression and pruritis. Respiratory depression is another common adverse effect of Morphine, but pruritis is the most common one out of the options given.