Lamotrigine associated with exacerbation or de novo myoclonus in idiopathic generalized epilepsies.

Crespel, A; Genton, P; Berramdane, M; Coubes, P; Monicard, C; Baldy-Moulinier, M; Gelisse, P · Neurology · 2005

case_series · Level IV

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Abstract

Five patients with idiopathic generalized epilepsies (IGE) treated with lamotrigine (LTG) experienced exacerbation or de novo appearance of myoclonic jerks (MJ). In three patients, LTG exacerbated MJ in a dose-dependent manner with early aggravation during titration. MJ disappeared when LTG dose was decreased by 25 to 50%. In two patients, LTG exacerbated MJ in a delayed but more severe manner, with myoclonic status that only ceased after LTG withdrawal.

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