A 31-year-old member asked:
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how long does thc stay in saliva?

2 doctor answers
Dr. Heidi Fowler
24 years experience Psychiatry
In “Pharmacokinetics: Of cannabinoids” by mcgilveray ij it is stated “saliva testing is a newer, less proven technology. The sensitivity of saliva tests is not well established in the case of marijuana. In theory, they are supposed to detect recent use, but this may range from several hours to over a day. They are supposed to detect secretions from inside the oral tissues that cannot be washed out with mouthwash.”.
Answered on Sep 3, 2018
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Dr. Pamela Pappas
41 years experience Psychiatry
THC in saliva: Thc is generally detectable in saliva for 1-10 days. However, urine testing is the more common approach -- and length of detectability depends on frequency of use.
Answered on Apr 26, 2016

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A 30-year-old member asked:
Dr. Evans Prieston
43 years experience Pharmacology
THC: All of the cannabinoids have a very long half-life in the body. In the case of thc in saliva, i would expect that it would be detectable for up to 30 ... Read More
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A 21-year-old male asked:
Dr. Jalal Zuberi
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Less than 24 hrs: Unless someone repeats using the weed within 14-16 hrs it generally becomes undetectable from saliva.
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Dr. Robert Grindstaff
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Questionable: it depends on how much you have been smoking. Saliva tests are reasonably new the standard is urine and it may take 4 to 6 weeks to clear ant the onl ... Read More
A 36-year-old member asked:
Dr. Gurmukh Singh
48 years experience Pathology
Depends on how long: One used the drug. Chronic users may test positive for weeks after the last use, about 80 days not being unheard of.
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