This infographic shows methadone detection windows on urine, blood, hair and saliva tests. More on methadone detection here.
methadone drug testing
How long does it take before methadone wears off? Generally, after a single oral dose effects can last from 6 to 8 hours, depending on patterns of use. More on duration of methadone effects here.
Methadone is a long acting opioid. Methadone stays in your system and can be detected 2-4 days after last dose. More on methadone testing, detection times, and signs of methadone addiction here.