Start practicing

Pharmacology · single question

All of the following are associated with xerostomia EXCEPT:

  1. Aging itself, independent of medications or disease
  2. Sjögren syndrome
  3. Anticholinergic medications
  4. Head and neck radiation therapy
Show answer and explanation

Correct answer: A. Aging itself, independent of medications or disease

  • A. Correct (the EXCEPTION). Age alone is not a direct cause of dry mouth; reduced salivary flow in older adults is usually due to medications and comorbid conditions, not aging per se.
  • B. Incorrect. Sjögren syndrome directly destroys salivary gland tissue and is a classic cause.
  • C. Incorrect. Anticholinergics (many antidepressants, antihistamines) reduce salivary secretion.
  • D. Incorrect. Radiation to the head and neck damages salivary glands, causing marked xerostomia.

Practice Pharmacology questions Pharmacology study notes

More Pharmacology practice questions