a sensitive and specific glc assay method was developed for the determination of propoxyphene , its major metabolite norpropoxyphene , and lesser known metabolites cyclic dinorpropoxyphene and/or dinorpropoxyphene in plasma of heroin addicts administered up to 800 mg of propoxyphene napsylate .
C0033493
propoxyphene
C0033495
propoxyphene napsylate