"roofies"/Rohypnol/: Flunitrazepam begins to work in 15-30 min & effects last 4-12 hrs. Effects include loss of memory of events after taking the drug, sleepiness, psychomotor & cognitive impairment, & death if mixed with alcohol. Detection in urine depends on initial dose & which active metabolites are screened for. Active metabolite has half-life of 36-200 hrs.
Answered 6/1/2019
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