Comparative Pharmacology
Head-to-head clinical analysis: DOLENE AP 65 versus INVAGESIC.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DOLENE AP 65 versus INVAGESIC.
DOLENE AP-65 vs INVAGESIC
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
DOLENE AP-65 is a combination of dipyrone (metamizole) and propantheline. Dipyrone is a non-opioid analgesic and antipyretic that acts centrally and peripherally via inhibition of cyclooxygenase and activation of the endocannabinoid system. Propantheline is an anticholinergic agent that inhibits muscarinic acetylcholine receptors, reducing gastrointestinal motility and spasm.
INVAGESIC is a combination of pregabalin, an alpha2-delta ligand that inhibits presynaptic calcium channels to reduce excitatory neurotransmitter release, and meloxicam, a COX-2 selective NSAID that decreases prostaglandin synthesis via cyclooxygenase inhibition.
DOLENE AP-65 (propoxyphene napsylate 100 mg and acetaminophen 650 mg). Adult: 1 tablet orally every 4 hours as needed for pain. Maximum: 6 tablets per day.
Adults: 1-2 tablets (325 mg acetaminophen/5 mg hydrocodone) orally every 4-6 hours as needed for pain, not to exceed 12 tablets per day.
None Documented
None Documented
2-3 hours in adults with normal hepatic function; prolonged in hepatic impairment (up to 5-10 hours) and in neonates (up to 3-5 hours)
Terminal elimination half-life: 4-6 hours in adults; prolonged to 8-12 hours in elderly or mild renal impairment
Renal: 90% (50% as acetaminophen glucuronide, 30% as sulfate, 5% as cysteine, 3% as unchanged drug, 2% as other metabolites); Fecal: <5%
Renal: ~70% as unchanged drug; biliary/fecal: ~30% as metabolites
Category C
Category C
Opioid Analgesic Combination
Opioid Analgesic Combination