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  • Title: Use of activated charcoal to reduce elevated serum phenobarbital concentration in a neonate.
    Author: Veerman M, Espejo MG, Christopher MA, Knight M.
    Journal: J Toxicol Clin Toxicol; 1991; 29(1):53-8. PubMed ID: 2005666.
    Abstract:
    The course of a neonate administered activated charcoal orally for elevated phenobarbital concentration is described. The neonate required a serum concentration of phenobarbital eventually exceeding 80 micrograms/mL for seizure control. However, due to the severe CNS injury as a result of the asphyxia at birth, a diagnosis of cerebral death by electroencephalogram and apnea test was pursued. This required the phenobarbital concentration to be less than 30 micrograms/mL. Serial phenobarbital concentrations during this time indicated a 250 hour half-life, which would require two weeks for the phenobarbital to drop below 30 micrograms/mL. With the administration of six doses of activated charcoal at 0.7 g/kg/dose, the phenobarbital serum concentration decreased to 22 micrograms/mL, giving an estimated phenobarbital half-life of 22 hours. This, and two other subsequent cases, indicates repeated doses of activated charcoal are effective in augmenting the clearance of certain drugs in the neonatal age group.
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