By Dr. William Walden
There
are many causes of dry mouth, but the most common cause is medications. Dry
mouth is the main side effect of many prescription and nonprescription
medications, including drugs used to treat depression, anxiety, pain, allergies and colds (antihistamines
and decongestants),
obesity, acne,
epilepsy, hypertension
(diuretics), diarrhea,
nausea,
psychotic
disorders, urinary
incontinence, asthma
(certain bronchodilators),
and Parkinson's
disease. Dry mouth can also be a side effect of muscle relaxants and
sedatives. As well as many diseases themselves cause dry mouth, such as, Sjögren's
syndrome, salivary gland diseases, sleep apnea, HIV/AIDS, Alzheimer's disease, diabetes, anemia,
cystic
fibrosis, rheumatoid
arthritis, hypertension, Parkinson's
disease, stroke,
and mumps.
Eating disorders such as bulimia and anorexia can also lead to dry mouth.
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