Antitubercular Drugs · Pharmacology

A patient develops 'Flu-like syndrome' (fever, chills, myalgia) when taking Rifampin. This is most likely to occur under which dosing schedule?

  1. Standard daily dosing
  2. Administration with a high-fat meal
  3. Intermittent high-dose therapy
  4. Slow intravenous infusion
Show answer and explanation

Correct answer: Intermittent high-dose therapy

The immunological flu-like syndrome caused by rifampin is far more common when the drug is given intermittently at high doses, for example twice-weekly regimens, than with standard daily dosing. Antibodies formed between doses are thought to drive the reaction.

Difficulty: Medium Question 18 of 20

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