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Clinical Efficacy of Valproic Acid in Relation to Plasma Levels

Published online by Cambridge University Press:  18 September 2015

J. Bruni
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
B.J. Wilder*
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
L.J. Willmore
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
H.J. Villarreal
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
M. Thomas
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
L.E.M. Crawford
Affiliation:
Neurology Service, Veterans Administration Hospital; Department of Neurology, University of Florida College of Medicine, Gainesville, Florida
*
Neurology Service (127), Veterans Administration Hospital, Gainesville, Florida 32602 U.S.A.
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Valproic acid is a new antiepileptic drug recently introduced in the United States for the treatment of absence seizures. In this study on patients with absence and other seizure types, the majority of patients achieved optimal control within four weeks of therapy. No patient responded to valproic acid who did not show an initial clinical response by four weeks of active therapy. Optimal response was generally achieved when plasma levels were greater than 55 μg/ml. Excellent clinical response was observed in the treatment of absence and myoclonic seizures. Twenty-two patients continued in a long term study have maintained the same degree of seizure control as observed at the time of optimal control.

Type
Research Article
Copyright
Copyright © Canadian Neurological Sciences Federation 1978

References

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