Tic disorders and Tourette's syndrome are conditions that primary care phys
icians are likely to encounter. Up to 20 percent of children have at least
a transient tic disorder at some point. Once believed to be rare, Tourette'
s syndrome is now known to be a more common disorder that represents the mo
st complex and severe manifestation of the spectrum of tic disorders. Toure
tte's syndrome is a chronic familial disorder with a fluctuating course; th
e long-term outcome is generally favorable. Although the exact underlying p
athology has yet to be determined, evidence indicates a disorder localized
to the frontal-subcortical neural pathways. Tourette's syndrome is commonly
associated with attention-deficit/hyperactivity disorder, obsessive-compul
sive disorder, behavior problems and learning disabilities. These comorbid
conditions make the management of Tourette's syndrome more challenging. Man
agement of Tourette's syndrome should include timely and accurate diagnosis
, education, and behavior or pharmacologic interventions. Use of neurolepti
c medications and dopamine D-2 antagonist drugs can be effective but may be
associated with significant side effects.