Brief Report: PDF OnlyKurata Kouichi; Kido, Hideki; Kobayashi, Katsuji; Yamaguchi, NariyoshiClinical Neuropharmacology: October 1988 - p 467-471 Buy Abstract There are many reports concerning involuntary movements (IMs) induced by phenytoin (PHT) (1–16). These complications usually occur at a plasma level of > 20 μg/ml of PHT and disappear with a decline in plasma concentration. To our knowledge there are two reports concerning PHT-induced IMs in patients of status epilepticus treated with intravenous PHT (12, 15). We report here a case of meningoencephalitis with status epilepticus in which severe IMs developed with multiple intravenous doses of PHT although the PHT plasma level was maintained within a therapeutic level. The IMs lasted ∼1 month after the PHT withdrawal. © Williams & Wilkins 1988. All Rights Reserved.