Effect of Activated Charcoal in 70 Sorbitol in Healthy Hdiyiduals

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Abstract
Activated charcoal in 70% sorbitol enjoys wide use in the management of acute poisonings but the effects of the activated charcoal-sorbitol mixture in healthy individuals were not characterized. The possiblity of sorbitol causing changes in the routinely monitored serum chemistry and hematological parameters, either directly due to the absorbed polyol or due to the diarrhea induced by it, thus complicating the diagnosis and management in an overdose setting was investigated. The action of a single dose of 30 g of activated charcoal in 150 ml of 70% sorbitol and its effects on serum osmolality, electrolytes, metabolic profile (SMAC), Mg, hepatic enzymes and complete blood count in healthy adult individuals was assessed. The only significant change in the laboratory parameters tested was the consistent rise in serum Na and P concentrations 4 h after drinking the charcoal-sorbitol mixture. However, a similarly consistent rise in the concentrations at the same hours on another day without ingestion of the charcoal-sorbitol mixture suggested the rise was due to circadian rhythm or other fractor unrelated to the cathartic. The lack of effect of routinely monitored laboratory parameters, relative palatability and the rapid onset (40-225 min), and long duration (7-127 h) of purgation, make charcoal-sorbitol an attractive combination for use as a gastrointestinal decontaminant. Possible effects of multiple dose regimens and the effects in pediatric and geriatric populations need further study.

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