Comparative Pharmacology
Head-to-head clinical analysis: NORCET versus ULTRAM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: NORCET versus ULTRAM.
NORCET vs ULTRAM
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Combination analgesic: hydrocodone acts as a μ-opioid receptor agonist; acetaminophen inhibits cyclooxygenase (COX) and modulates endocannabinoid system, exerting central analgesic and antipyretic effects.
Tramadol is a centrally acting synthetic opioid analgesic that binds to μ-opioid receptors and inhibits norepinephrine and serotonin reuptake.
1-2 tablets (containing paracetamol 325 mg and tramadol 37.5 mg) orally every 4-6 hours as needed for pain, maximum 8 tablets per day.
50-100 mg orally every 4-6 hours as needed for pain; maximum 400 mg/day (for extended-release: 100 mg once daily, titrated up to 300 mg once daily).
None Documented
None Documented
2-4 hours (terminal); prolonged in hepatic impairment (up to 8-10 hours) and elderly
Tramadol: ~6 hours; M1 metabolite (O-desmethyltramadol): ~7 hours; prolonged in renal/hepatic impairment
Renal: ~60% unchanged; hepatic metabolism to inactive glucuronide conjugates; biliary/fecal: <5%
Renal: ~90% (tramadol and metabolites; conjugated metabolites are major), Fecal: ~10%
Category C
Category C
Opioid Analgesic
Opioid Analgesic