
Originally Posted by
Wooly100
some guys in my ASAM group therapy are swearing up and down that because I use mouth wash I will fail an Etg. The instructor even said it is possible...I have looked at several sites about Etg and it is mentioned... but is that reality? And if so...why the heck would they use some test that can't differentiate between rinsing your mouth and drinking? As if recovery isn't hard enough without adding legal issues for mouthwash use. What do you think? By the way I have looked at several of your threads and truly appreciate the insight help and insight you have given so many. Thanks for your work. I know you have helped many.
USDTL tested mouthwash and found.. "it is possible to generate detectable concentrations of EtG and EtS by using ethanol-containing mouthwash as directed on the manufacturer's label with as few as 2-3 rinses." Other researchers for the past 6 years have confirmed the finding. In the overall context of how this test is misused that is a minor flaw.
Those that use the test do so because they fail to do their homework. In actuality EtG testing has never been cleared for use in the US. The FDA has never approved the test, a fact acknowledged by SAMHSA and the FDA.
While exposure to environmental alcohol will trigger a positive on EtG it is largely a matter of timing. Mouthwash (or any alcohol) will cause a peak EtG from 2-5 hours after use. That is the range where it is likely to be detected. It then declines and within a couple of hours will fall below the level of detection. By being careful the day before a test, drinking plenty of water, you can usually avoid problems. Never go to an EtG test poorly hydrated. Drink plenty of water up until about 3 hour prior to test. That is not a method for beating the test but based on the assumption of total abstinence from alcohol.
United States Drug Testing Laboratory, Research Monograph, 2006
Ethyl Glucuronide and Ethyl Sulfate Concentrations Following Use of Ethanol Containing Mouthwash
Gary M Reisfield, et al (2011)
Ethyl glucuronide, ethyl sulfate, and ethanol in urine after intensive exposure to high ethanol content mouthwash. Journal of Analytical Toxicology, Vol. 35, June 2011
The Role of Biomarkers in the Treatment of Alcohol Use Disorders, 2012 Revision, Spring 2012, Volume 11, Issue 2. Substance Abuse and Mental Health Services Administration [SAMHSA] United States Department of Health and Human Services. p. 7
Personal correspondence with Food & Drug Administration (FDA), Div of Chemistry and Toxicology Devices, July 2012.