Comparative Pharmacology
Head-to-head clinical analysis: TYLOX versus TYLOX 325.
Peer-Reviewed Evidence
Head-to-head clinical analysis: TYLOX versus TYLOX 325.
TYLOX vs TYLOX-325
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Tylox combines oxycodone, a mu-opioid receptor agonist, with acetaminophen, which inhibits cyclooxygenase (COX) and modulates descending serotonergic pathways.
Acetaminophen and oxycodone combination. Acetaminophen inhibits cyclooxygenase (COX) enzymes, primarily in the CNS, reducing prostaglandin synthesis. Oxycodone is a mu-opioid receptor agonist, activating descending pain pathways and altering pain perception.
1-2 capsules (oxycodone 5 mg/acetaminophen 325 mg) orally every 6 hours as needed for pain; maximum 12 capsules per day.
1-2 capsules (oxycodone 5-10 mg / acetaminophen 325-650 mg) orally every 4-6 hours as needed for pain; maximum 12 capsules per day.
None Documented
None Documented
Oxycodone: 3.5-5.6 hours; acetaminophen: 2-3 hours. In hepatic impairment, oxycodone half-life prolonged up to 13 hours.
Acetaminophen: 2-3 hours (prolonged in hepatic impairment). Oxycodone: 3-5 hours (extended-release preparation); terminal half-life 4.5-5.5 hours. Clinical context: repeated dosing may lead to accumulation; half-life prolongation in elderly, renal or hepatic disease.
Renal: oxycodone ~19% unchanged; acetaminophen ~2-5% unchanged. Biliary: minimal. Fecal: <5% total. Total renal elimination: ~60-70% as metabolites of oxycodone (noroxycodone, oxymorphone) and acetaminophen conjugates.
Renal: acetaminophen metabolites (60-70% as glucuronide conjugate, 20-30% as sulfate conjugate, 5-10% as cysteine conjugate, 5% unchanged). Oxycodone: renal (primarily metabolites, <10% unchanged); biliary/fecal: minor (oxycodone metabolites).
Category C
Category C
Opioid analgesic combination
Opioid analgesic combination