Some medications used to treat ADHD cause dry mouth. The medications that cause this adverse side effect do so very often. However, this side effect is usually mild and remits when the patient stops taking the treatment.
How is ADHD treatment related to dry mouth?
Many of the medications used to treat ADHD reduce saliva production and cause dry mouth. Dry mouth can lead to problems with speech and swallowing. Short term studies show that around 1 in 6 patients have this adverse side effect. The frequency is 4 to 5 times higher in ADHD patients who do not receive active treatment. However, this side effect usually improves by lowering the treatment dose and remits when treatment is withdrawn.