Fluoroquinolones · Pharmacology

Which of the following is a CNS-related side effect of fluoroquinolones, particularly in the elderly or those with a history of seizures?

  1. Lowering of the seizure threshold
  2. Extrapyramidal symptoms such as dystonia
  3. Serotonin syndrome
  4. Malignant hyperthermia
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Correct answer: Lowering of the seizure threshold

Fluoroquinolones may act as GABA antagonists in the CNS. This can lead to central stimulation, causing tremors, insomnia, and in severe cases, seizures.

Difficulty: Medium Question 9 of 20

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