I am pretty sure methadone is an opiate right?? Just wondered how long it stays in system for?? Thanxs
Post-dose 4 hours (PEAK): The half-life for methadone in plasma is 15-55 hours. This is the time for 50% of the dose to be metabolized and excreted in the urine A half life is the time it takes for HALF of the drug to be metabolized in your body. Then an other half life for the other half, then an OTHER half life for that half ect. Most drug tests are sensitive for 4-6 half lives, which would be, at most about 330 hours. Although everyone's liver works a little differently. And the "noise level" they set the drug test at is different for different testing laboratories. If you have a prescription, it shouldn't be a problem.
