Fig. 3From: The effect of concentration, reconstitution solution and pH on the stability of a remifentanil hydrochloride and propofol admixture for simultaneous co-infusionMetabolic pathway of remifentanil showing its major metabolite, remifentanil acid (GR90291), and a minor metabolite (GR94219). Modified from Westmoreland et al. [35]Back to article page