Hydroxypethidine
（重定向自Bemidone）
Hydroxypethidine (Bemidone) is an opioid analgesic that is an analogue of pethidine (meperidine). Hydroxypethidine is significantly less potent than meperidine as an analgesic, (0.3x meperidine in potency) although it also has NMDA antagonist properties like its close relative ketobemidone.