Journal
PEDIATRIC INFECTIOUS DISEASE JOURNAL
Volume 35, Issue 5, Pages 586-589Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/INF.0000000000001084
Keywords
isoniazid; peripheral neuropathy; pyridoxine; tuberculosis; vitamin B6
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Funding
- Fondo de Investigacion Sanitaria [ICI14/00228, PI13/01740]
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Isoniazid exposure causes dose-dependent pyridoxine deficiency. Recently, the recommended dosage of isoniazid in children was increased from 5 (4-6) to 10 (10-15) mg/kg/day. We aimed to analyze longitudinally pyridoxine levels in a cohort of previously healthy children and adolescents treated with isoniazid. Mild symptom-free pyridoxine deficiency was observed in 4/75 (5.6%) and 3/40 (7.5%) at baseline and at 3-month follow-up, respectively. Classical age-related risk factors identified patients at risk of pyridoxine deficiency. Our preliminary results support current recommendations regarding pyridoxine supplementation in healthy children.
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