15 citations
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May 2006 in “Brain & development” Valproic acid may cause hair loss by reducing biotinidase enzyme activity in rats.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
March 2023 in “Mağallaẗ wāsit li-l-ʿulūm wa-al-ṭibb” A rare biotin deficiency in an Iraqi family caused severe symptoms but was successfully treated with lifelong biotin.
22 citations
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September 2008 in “Brain & development” Biotin supplements increased biotin levels but did not significantly prevent hair loss in rats on valproic acid.
16 citations
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May 2009 in “Journal of child neurology” Valproic acid does not change biotinidase enzyme activity in children's blood.