Tags: Drug.
Norpethidine (Normeperidine Pethidine Intermediate B) is a 4-phenylpiperidine derivative that is both a metabolite of and a precursor to pethidine (meperidine). It is scheduled by UN Single Convention on Narcotic Drugs.Norpethidine is a controlled drug because of its potential uses in manufacturing both pethidine itself and a range of N-substituted derivatives but it has little opioid activity in its own right.
