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Dry mouth is an abnormal dryness of the mucus membranes in the mouth. This happens when there isn’t enough saliva or the composition of the saliva changes. Dry mouth is common in the elderly.
Dry mouth can be due to a side effect of many medications. These include antidepressants, antihistamines, water pills, and medicines for high blood pressure.
Dry mouth can also result from many health conditions. These include nasal congestion, gum disease, diabetes, stroke, and Sjögren’s syndrome, an autoimmune disorder. It may also be a side effect of chemotherapy or radiation therapy used to treat cancer.
Treatment is aimed at relief and/or treating the underlying cause. If not treated, dry mouth may lead to severe tooth decay, infection, and poor nutrition.