Estimation of methadone clearance: application in the management of cancer pain.

Abstract

The long half-life and wide inter-patient variability in clearance of methadone make this drug difficult to use optimally. If a patient's methadone clearance is known, however, dose regimens can be devised to maintain any desired blood concentration and hence, since the effect of methadone is related to its concentration in the blood, pain relief. We… (More)

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