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A member asked:
How long will marijuana stay in your saliva for a saliva test if you are a heavy user?
A doctor has provided 1 answer
Up to 3 days: Saliva testing detects relatively recent use and may remain positive for up to 3 days after last use. More commonly used urine tests can stay positive for a month or 2 in heavy users so saliva tests are more accurate to assess recent use. See http://forensicfluids.com/oral-v-urine/
Answered 8/19/2018
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