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How long does methadone stay in your sestem?

Responses (1)

mariesrun 29 May 2010

It depends on how much is in your system, how often you have taken it.

The half life (rate of decay) of methadone is 24-36 hours. You can figure it out exactly mathematically by using the formula: Q=Q(0)e^rt, SOLVE FOR T,
where Q = 0 (the amount of methadone at test time); r = 36, Q(0)=the amount of methadone in your system; and t=time in hours.

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