Citalopram-induced jaw tremor.

A variety of medications can induce or enhance a tremor. Tremors most commonly affect the limbs, especially the arms. We report a patient who presented with a 5-6 Hz jaw tremor with a temporal association with the administration of citalopram. To our knowledge, this is the first report in literature, of a transient jaw tremor associated with citalopram. According to the current data, citalopram-induced jaw tremor can be explained by an indirect inhibitory effect on central dopaminergic activity.