The t 1/2 of active metabolites of clonazepam is 23 hrs +/- 5. Valium is likw 40-60 hrs or something like that. At any rate, I know you get variability from subject to subject based on body fat ratio/ liver function, ect... But what is the average amount of time for a dose to drop below detectable limits. I recently restarted wellbutrin and am trying to prevent a panic attack. I have an Rx for klonopin that is more than a year old so I don't know if I'm covered in a pre-employment drug screen- just rather avoid hassel. Yes its for a job that they do 10 panel screens. I know this isn't the legal issues discussion but would appreciate info if I'm ok with old Rx as an aside. Why I'm posting this here in ADD is because there is a dirth of info on the web that is free or reliable including what is on wiki and the info on erowid is out of date and non specific to clonazepam. So this were I would be likely to get the most reliable info- to much danger of old wives tales on other message bluelight boards. Just looking for practicle pharmacokinetic info about ranges of detectability of metabolites. Probably need 1-2 mg over 3-5 days. Feeling jumpy and on verge of P/A right now, might ride it out though. Anyway, I think there should be a reliable fact somewhere on bluelight authored by members that have reliable info. For a harm reduction site this is essential because clearly the harm done by employment drugscrees far outweighs that of the drugs themselves on the individual. Thanks guys!