Multiple choice

Which of the following is not used as a sedative but causes sedation as a side effect?

  1. Digitalis, anti-arrhythmics

  2. Antihistamines, antidepressants

  3. Macrolides, antibiotics

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antihistamines (first-generation) and tricyclic antidepressants cause significant sedation as a side effect due to H1 receptor blockade in the CNS, but this is not their primary therapeutic use. Digitalis and antiarrhythmics primarily affect cardiac conduction. Macrolides and antibiotics are antibiotics with minimal sedative effects.

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