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Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1975 Mar;38(3):225–231. doi: 10.1136/jnnp.38.3.225

Involuntary movements caused by phenytoin intoxication in epileptic patients.

S Ahmad, J Laidlaw, G W Houghton, A Richens
PMCID: PMC491900  PMID: 239101

Abstract

The case histories of four patients who developed choreoathetoid movements during intoxication with phenytoin are presented. Drug intoxication was confirmed in each case by measuring the serum phenytoin concentration. Drug interactions were, in part, responsible for the occurrence of intoxication in three of them. Phenytoin intoxication is not always easy to recognize, particularly when nystagmus is minimal or absent, as in these four patients. The estimation of the serum phenytoin concentration is invaluable in this situation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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