A member asked:

For what length of time does methadone last in bloodstream?

A doctor has provided 1 answer
Dr. Nathaniel Drourr answered

Specializes in Pain Management

Long time: Methadone half life depends on many factors - dosage, duration of dosage, fat composition, exercise level... In general detectable levels anywhere from 3-7 days.

Answered 1/6/2015

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