Comparative Pharmacology
Head-to-head clinical analysis: KETOROLAC TROMETHAMINE AND PHENYLEPHRINE HYDROCHLORIDE versus TAB PROFEN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: KETOROLAC TROMETHAMINE AND PHENYLEPHRINE HYDROCHLORIDE versus TAB PROFEN.
KETOROLAC TROMETHAMINE AND PHENYLEPHRINE HYDROCHLORIDE vs TAB-PROFEN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2), reducing prostaglandin synthesis. Phenylephrine is a selective alpha-1 adrenergic receptor agonist, causing vasoconstriction.
Non-selective cyclooxygenase (COX-1 and COX-2) inhibitor; reduces prostaglandin synthesis.
Ophthalmic: 1 drop of the combination (ketorolac tromethamine 0.45% and phenylephrine hydrochloride 1%) into the operative eye three times daily, beginning 1 day prior to surgery and continuing on the day of surgery and for 2 weeks postoperatively.
400-800 mg orally every 6-8 hours as needed; maximum 3200 mg/day.
None Documented
None Documented
Ketorolac: 2.4-8.6 hours (mean 5.3 hours) in young adults; prolonged in elderly (up to 13.9 hours) and renal impairment. Phenylephrine: 2-3 hours.
The terminal elimination half-life is 2-4 hours in adults with normal renal function. In elderly patients or those with renal impairment, half-life may be prolonged up to 8-12 hours, requiring dose adjustment.
Ketorolac: ~92% renal (60% as unchanged drug, 32% as metabolites), 6% fecal. Phenylephrine: primarily renal as metabolites (sulfate conjugates) with <1% unchanged.
Renal excretion of unchanged drug accounts for approximately 70-90% of the administered dose, with the remainder eliminated as glucuronide conjugates in urine. Biliary/fecal elimination is minimal (<5%).
Category D/X
Category C
NSAID
NSAID