Question - For how long can ketamine be detected in humans following use?
Answer- The cited reference notes “Ketamine and some of its derivatives have been detected in hair, urine, and blood, however primarily in urine and blood. Ketamine and norketamine have been detected in urine for 5 and 6 days, respectively. Dehydronorketamine, another metabolite, has been detected for up to 10 days.” (Myers FA et al. Ketamine: A cause of urinary tract dysfunction 2016 Clin Lab Med 36:721-744)
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