Pharmacology · single question
A patient takes amitriptyline. What is the cause of their xerostomia?
Show answer and explanation
Correct answer: A. Drug effect
- A. CORRECT. Amitriptyline is a tricyclic antidepressant with strong anticholinergic effects that reduce salivary flow.
- B. INCORRECT. No infection is implicated.
- C. INCORRECT. An autoimmune cause (such as Sjögren) is not indicated here.
- D. INCORRECT. No radiation history is given.