How Long Does Valium Stay in Your Urine?

Just be careful because in case of Oxycodone the half life is approx 3.5hrs and theoretically is out in 6 x 3.5hrs= 21hrs BUT there is also can be DRUG CONVERSION in a case like this drug where portion is metabolized and converted to oxymorphone whose half life is nearly 15hrs and so oxymorphone will show for 6 x 15hrs= 90hrs which is FAR longer than 21 hrs despite it beginning just as an oxycodone pill. Even Adderall is MIXED amphetamine salts and one has a 7hrs half life, the other 13.9hrs so best to pick the bigger half life that would indicate use and use it. So that would mean 13.9 x 6 = 84hrs that Adderall is technically detectable if text looking for that particular ampetamine salt. You have to be careful because the continue to discover new both "active" and inactive" of metabolites of drugs that indicate use and inactive ones (meaning no longer act on the body) can hang around long after active ones and tend to have always have longer half lives of the drug they indicate. So trick is make sure there is no drug coversions like oxycodone where a portion becomes oxymorphone and significantly increases detection because the converted drug having longer half life and ALSO make sure they aren't looking for METABOLITES and THEIR half live which also tend to be much longer. Either way almost REGARDLESS OF QUANTITY TAKEN, start from LAST DOSE taken and begin to calculate the hours since that dose. If you took 100mg of a drug, once it gets to 1.5125% of whatever number it becomes so small the usually has no effect on calculation b/c number so small it is often well below a "background cut-off" for testing for a drug. People always make mistake thinking amount matters and 0% of 100 is same as 0% of 3000 so will techinically 1.5% not 0% after 6 half lives it still is a tiny number not usually detectable.