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Flightsurgeon created the topic: metabolism of alcohol time factors
certain questionss relate to the time for one standard drink to wear off
I know that is generally for a male 1 hour , longer for a female and there are hepatic factors that also impinge on this, and there are questions that center on 1 hour being the accepted answer
If you read page 007 of the plain english guide, it says it takes about 3 hours for the effects of one standard drink wear off