Fig. 2.
Mean plasma concentration-time profile of (right panel) mitragynine after intravenous (I.V.) administration (0.1 mg/kg, N = 4), and (left panel) mitragynine and 7-hydroxymitragynine after a single oral dose (5 mg/kg, N = 5) of mitragynine in female beagle dogs. Bars represent SEM.