Comparative Pharmacology
Head-to-head clinical analysis: CODEPREX versus CODOXY.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CODEPREX versus CODOXY.
CODEPREX vs CODOXY
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Codeine is a prodrug converted to morphine via CYP2D6; morphine acts as a mu-opioid receptor agonist, while homatropine is an anticholinergic that reduces respiratory secretions.
Oxycodone is a full opioid agonist with relative selectivity for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses. The principal therapeutic action of oxycodone is analgesia. Like all full opioid agonists, there is no ceiling effect for analgesia. Oxycodone is combined with aspirin to provide additive analgesic effects.
Adults: 1 tablet (containing 5 mg hydrocodone and 325 mg acetaminophen) orally every 4-6 hours as needed for pain; maximum 6 tablets per day.
1-2 capsules orally every 4-6 hours as needed for pain, not to exceed 8 capsules per day. Each capsule contains 5 mg hydrocodone bitartrate and 325 mg acetaminophen.
None Documented
None Documented
4-6 hours (prolonged to 10-12 hours in hepatic impairment)
Terminal half-life is 3.5 hours in patients with normal renal function; extends to 5-8 hours in moderate renal impairment.
Renal: 60% as unchanged drug; Hepatic metabolism: 30% (inactive metabolites); Fecal: 10%
Renal excretion of unchanged drug accounts for approximately 70% of elimination; biliary/fecal excretion accounts for 30%.
Category C
Category C
Antitussive Combination
Antitussive Combination