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Lithium, by itself, can be associated with prominent clinical myoclonus, short-duration (<50-millisecond) myoclonus EMG discharges and cortical action myoclonus without the presence of epileptiform abnormalities on the routine EEG. This myocl onus is different from the most common form that is well documented to occur with tricyclic antidepressant therapy by clinical and electrophysiologic means. |
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