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Answer:
I found this article... and seems seems dead on point...
The October 2007 issue of the Journal of Analytical Toxicology (Volume 31, Number 8, Page 462) reports on a study of six volunteers smoked who each smoked 40 milligrams of cocaine. Maximum urinary concentrations for cocaine, benzyoylecgonine, and ecgonine methyl ester occurred at 2.2, 6.6, and 5.6 hours respectively. The last positive urine test for cocaine (10 ng/ml cutoff occurred 55 hours after smoking, but benzoylecgonine (20 ng/ml cutoff) and ecgonine methyl ester (10 ng/ml cutoff) continued to be detectable for 106 and 164 hours respectively (Huestis, et al., 2007)
meaning.. drug screens DO NOT search for Cocaine itself, it searches for the metabolites Benzoylecgonine and Ecgonone Methyl, which can stay in your urine for a good 5-7 days after you do coke. This is for a non frequent user, (like once or twice a month). If you do cocaine daily, or even every weekend, it will be detecable in your urine for up to a month. Be careful.
Regards,
Itachi
The October 2007 issue of the Journal of Analytical Toxicology (Volume 31, Number 8, Page 462) reports on a study of six volunteers smoked who each smoked 40 milligrams of cocaine. Maximum urinary concentrations for cocaine, benzyoylecgonine, and ecgonine methyl ester occurred at 2.2, 6.6, and 5.6 hours respectively. The last positive urine test for cocaine (10 ng/ml cutoff occurred 55 hours after smoking, but benzoylecgonine (20 ng/ml cutoff) and ecgonine methyl ester (10 ng/ml cutoff) continued to be detectable for 106 and 164 hours respectively (Huestis, et al., 2007)
meaning.. drug screens DO NOT search for Cocaine itself, it searches for the metabolites Benzoylecgonine and Ecgonone Methyl, which can stay in your urine for a good 5-7 days after you do coke. This is for a non frequent user, (like once or twice a month). If you do cocaine daily, or even every weekend, it will be detecable in your urine for up to a month. Be careful.
Regards,
Itachi
First answer by ID1152264720.
Last edit by ID1152264720.
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