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  • Title: Impact of the Increased Recommended Dosage of Isoniazid on Pyridoxine Levels in Children and Adolescents.
    Author: Rodà D, Rozas L, Fortuny C, Sierra C, Noguera-Julian A.
    Journal: Pediatr Infect Dis J; 2016 May; 35(5):586-9. PubMed ID: 26862674.
    Abstract:
    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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