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ADD & ADHD Center

ADHD & Tics

author image Rachel Elizabeth
Rachel Elizabeth has been writing and editing since 2006. Her work appears in the academic journal "Teaching of Psychology," as well as on various websites. Rachel Elizabeth has a Doctor of Psychology from Widener University.
ADHD & Tics
The presence of tics and symptoms of ADHD may co-occur.

Attention deficit hyperactivity disorder, or ADHD, is characterized by difficulties with focus and attention and/or hyperactive and impulsive behavior. Tics may be motor or vocal in nature and are involuntary behaviors that are difficult to control. The presence of tics in individuals diagnosed with ADHD may be the result of stimulant medication use or as a naturally co-occurring disorder.

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Symptoms of ADHD

ADHD is often diagnosed in early childhood. Children may demonstrate difficulties with attention, or hyperactivity and impulsivity, or both. Children who struggle with attention may have difficulty following instructions, not listen when others are speaking, be disorganized and distracted, be forgetful and often losing things, and have trouble focusing or concentrating on tasks. Children who struggle with impulsive and hyperactive behavior may have trouble sitting still, be unable to wait their turn, act without thinking, interrupt others, fidget or appear restless, and seem to be constantly moving.


The National Resource Center on ADHD defines simple tics as “sudden, purposeless, repetitive, involuntary movements or vocalizations.” The behaviors seen with tics include clearing the throat, grimacing, eye blinks and head tilting. Individuals may have either motor and/or vocal tics.

Medication Side Effects

Taking stimulant medications can lead to the appearance of underlying tics. In other words, an individual with a predisposition to develop tics can be triggered by the use of stimulant medication. Although tics are not always visible, stopping medication often leads to the elimination of tics, or over time, despite continuation of medication, the tics will eventually disappear.

Tourette Syndrome

Tourette syndrome is a tic disorder where individuals often demonstrate vocal and motor tics for at least one year. There is a strong co-occurrence of ADHD and Tourette syndrome. The National Resource Center on ADHD reports that while around 7 percent of children with ADHD have Tourette syndrome, 60 percent of children with Tourette syndrome have ADHD. The symptoms of Tourette syndrome can be treated with medication.


Treating individuals with both tics and ADHD can be a difficult process. Treating tics or Tourette syndrome as well as ADHD may be done through the use of behavioral therapy and/or medication. A physician will need to determine which symptoms to treat first. If a child develops tics following the use of stimulants, a physician may take her off the medication until the tics can be controlled. The use of stimulant medications to treat ADHD may not exacerbate tics when given in proper dosage, but should still be monitored carefully.

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