Second-generation antipsychotics have been growingly implicated in the acute and maintenance treatment for bipolar affective disorder (BAD). Risperidone long-acting injection (LAI) has been the first second-generation depot indicated for its maintenance treatment. However, its long-term motor side-effects, especially tardive dyskinesia (TD), has not been commonly reported or studied. The case reported here a bipolar patient with atypical presentation of TD involving only the crico-hyoid region of the neck associated with the use of risperidone LAI in adjunct to lithium and sodium valproate as maintenance therapy.

Risperidone long-acting injection, bipolar, maintenance, tardive dyskinesia, crico-hyoid region

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