Citation: Lo. "Visine Worked: An Experience with Cannabis & Drug Testing (exp63069)". Erowid.org. Sep 27, 2007. erowid.org/exp/63069
I just wanted to corroborate the use of Visine as a false negative producer when faced with a drug test. I smoked May 13 rather heavily then took my test 9am the next morning, adding approximately 5mL Visine to a 60mL urine sample. I was stunned when the test came back negative. I did not drink copious amounts of water of do anything different other than the adulterant. I also do not use any other drugs.
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