Abstract:
:To determine the degree of ethanol absorption and the resultant formation and urinary excretion of its conjugated metabolites following intensive use of high ethanol content mouthwash, 10 subjects gargled with Listerine(®) antiseptic 4 times daily for 3¼ days. First morning void urine specimens were collected on each of the four study days and post-gargle specimens were collected at 2, 4, and 6 h after the final gargle of the study. Urine ethanol, ethyl glucuronide (EtG), ethyl sulfate (EtS), and creatinine were measured. Ethanol was below the positive threshold of 20 mg/dL in all of the urine specimens. EtG was undetectable in all pre-study urine specimens, but two pre-study specimens had detectable EtS (6 and 82 ng/mL; 16 and 83 μg/g creatinine). Only one specimen contained detectable EtG (173 ng/mL; 117 μg/g creatinine). EtS was detected in the urine of seven study subjects, but was not detected in the single specimen that had detectable EtG. The maximum EtS concentrations were 104 ng/mL and 112 μg/g creatinine (in different subjects). Three subjects produced a total of eight (non-baseline) urinary EtS concentrations above 50 ng/mL or 50 μg/g creatinine and three EtS concentrations exceeding 100 ng/mL or 100 μg/g creatinine. In patients being monitored for ethanol use by urinary EtG and EtS concentrations, currently accepted EtG and EtS cutoffs of 500 ng/mL are adequate to distinguish between ethanol consumption and four times daily use of high ethanol content mouthwash.
journal_name
J Anal Toxicoljournal_title
Journal of analytical toxicologyauthors
Reisfield GM,Goldberger BA,Pesce AJ,Crews BO,Wilson GR,Teitelbaum SA,Bertholf RLdoi
10.1093/anatox/35.5.264subject
Has Abstractpub_date
2011-06-01 00:00:00pages
264-8issue
5eissn
0146-4760issn
1945-2403journal_volume
35pub_type
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