Dose-dependent valproate-induced alopecia in patients with mental disorders.

Indian J Pharmacol

Department of Pharmacy, Hospital Bando, Bando, Ibaraki, Japan; Department of Medical Technology, Faculty of Health Sciences, Tsukuba International University, Tsuchiura, Japan.

Published: October 2016

Drug-induced hair loss may occur as a side effect in patients treated with valproate. However, few studies have reported a relationship between the blood levels of valproate and the occurrence of hair loss. We report three cases of alopecia that occurred in patients who received sodium valproate for mental disorders. In all three cases, alopecia appeared after long-term valproate exposure with a plasma concentration of 100 µg/ml approximately. However, the alopecia resolved in all cases after dose reduction or treatment discontinuation. Therefore, alopecia may develop in patients with chronic exposure to high plasma concentrations of valproate. Based on these findings, we believe that patients with high plasma concentrations of valproate should be closely monitored for the occurrence of side effects, particularly alopecia.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689030PMC
http://dx.doi.org/10.4103/0253-7613.169587DOI Listing

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