Just curious as to what the go is with RC's and urine drug tests... Is it likely that Naphyrone or other popular RC's will give a positive reading? And if so what substance will it give a positive reading for... Any info much appreciated.
6-apb would likely test as MDMA, things like 4-fluroamphetamine, and less likely cathinone like mephedrone could posssibly test as amphetamines. Hard to imagine naphyrone testing as anything.