Comparative Pharmacology
Head-to-head clinical analysis: CODAMINE versus PERCOCET.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CODAMINE versus PERCOCET.
CODAMINE vs PERCOCET
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Codeine is an opioid agonist that binds to mu-opioid receptors in the CNS, inhibiting ascending pain pathways and altering pain perception. It is a prodrug converted to morphine via CYP2D6.
Oxycodone is a mu-opioid receptor agonist, inhibiting ascending pain pathways and altering pain perception and emotional response. Acetaminophen inhibits cyclooxygenase (COX) in the CNS, reducing prostaglandin synthesis and exerting analgesic and antipyretic effects.
Adults: 1-2 tablets (codeine 30 mg + acetaminophen 500 mg per tablet) orally every 4-6 hours as needed for pain; maximum 8 tablets per day.
One tablet (5 mg oxycodone/325 mg acetaminophen) every 6 hours as needed for pain; maximum 12 tablets per day.
None Documented
None Documented
Terminal elimination half-life: 4–6 hours in adults; prolonged to 8–12 hours in renal impairment (CrCl <30 mL/min)
Oxycodone: 3.5–4.5 hours (terminal) in normal renal function; prolonged in hepatic/renal impairment (up to 6–12 hours). Acetaminophen: 2–3 hours (terminal) in overdose, extended with hepatic injury.
Renal: 60% unchanged; Biliary/Fecal: 30% as metabolites; 10% other
Oxycodone: primarily renal (up to 19% as unchanged drug, 50% as noroxycodone and oxymorphone metabolites); about 10% biliary/fecal. Acetaminophen: renal (majority as glucuronide and sulfate conjugates, about 5% unchanged).
Category C
Category C
Opioid Analgesic Combination
Opioid Analgesic Combination