Dry mouth

A persistently dry mouth is known clinically as xerostomia.

Possible causes

 * Sjögren's syndrome
 * Medication side effect (notably opiates and antidepressants)
 * Allergic response
 * Certain cancer treatments
 * Stress response

Learn more

 * Xerostomia (Dry Mouth) - American Dental Association
 * Dry mouth: symptoms and causes - Mayo Clinic
 * Dry mouth: expert answers - Mayo Clinic