Effects of propofol analogs on glucuronidation of propofol, an anesthetic drug, by human liver microsomes.

To prevent rapid forming O-glucuronide of propofol (2,6-diisopropylphenol), an intravenous anesthetic, effects of propofol analogs were investigated. Propofol was predominately glucuronidated by human UGT1A9 and intestinal or liver microsomes. 2,5-Diisopropylphenol inhibited the propofol glucuronidation. A possibility of developing orally administrable agents or of reducing propofol dose by coadministration is suggested.