Polyethylene glycol electrolyte lavage solution increases tablet dissolution of acetaminophen in an in vitro model mimicking acute poisoning - 08/05/20
, Kimberly J. Won, Pharm.D., BCCCP a, Christian Tomaszweski, M.D., M.S., MBA d, e, Richard F. Clark, M.D. d, eAbstract |
Introduction |
Polyethylene glycol electrolyte lavage solution (PEG-ELS) is similar to pharmaceutical solvent propylene glycol and used following acute poisonings for whole bowel irrigation (e.g., “body stuffing”). This raises concern of PEG-ELS increasing solubility following acute ingestions of non-sustained release xenobiotics in the stomach. We theorized PEG-ELS increases solubility of acetaminophen in an in vitro stomach model.
Material and methods |
An in vitro artificial stomach with 500 mL simulated gastric fluid and either 500 mL of sodium chloride 0.9% (group A) or 500 mL of PEG-ELS (group B). Ten non-sustained release acetaminophen tablets added with concentrations 0, 15, 45 and 90 min in triplicate. Mean concentrations and mean area under the curve (AUC) (mg-min/L to 90 min).
Results |
In control group A (normal saline + simulated gastric fluid) mean acetaminophen concentrations 0, 3, 13 and 36 mg/L at 0, 15, 45 and 90 min, respectively. In group B (PEG-ELS + simulated gastric fluid) mean acetaminophen concentrations 0, 34, 109 and 136 mg/L at 0, 15, 45 and 90 min, respectively (p < 0.05). Mean AUC 0-90 1385 [95% C.I. 990.5–1779] mg-min/L in control group A compared to mean AUC 0-90 in group B (PEG-ELS) 7673 mg-min/L [95% C.I. 4832–10513] (p < 0.05).
Discussion |
Group B (PEG-ELS) with significantly higher mean acetaminophen concentrations and greater mean AUC compared to control group A (normal saline).
Conclusion |
We demonstrated increased mean acetaminophen concentrations and increased mean AUC of following exposure of PEG-ELS in an artificial stomach model.
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Vol 38 - N° 2
P. 325-328 - febbraio 2020 Ritorno al numero
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