Comparative Pharmacology
Head-to-head clinical analysis: DEMEROL versus DOLENE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DEMEROL versus DOLENE.
DEMEROL vs DOLENE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Meperidine is an opioid agonist that binds to mu-opioid receptors in the central nervous system, mimicking endogenous endorphins to produce analgesia, sedation, and euphoria. It also has additional weak actions at kappa and delta receptors.
Opioid agonist, primarily mu-opioid receptor activation, leading to analgesic and euphoric effects.
50-150 mg IM, IV, or SC every 3-4 hours as needed for pain; oral 50-150 mg every 3-4 hours.
50 mg orally every 4-6 hours as needed for pain; maximum 400 mg per day.
None Documented
None Documented
2.5-4 hours; prolonged in hepatic impairment (7-11 hours) and elderly.
2.5-3.5 hours; prolonged in hepatic impairment (up to 6-8 hours) and in neonates.
Renal (90% as metabolites and unchanged drug; ~5% unchanged) and biliary/fecal (minor).
Renal: 70-80% as conjugated metabolites (mostly glucuronides), 5-10% as unchanged drug; Fecal: 5-10%; Biliary: minor.
Category C
Category C
Opioid Analgesic
Opioid Analgesic