Comparative Pharmacology
Head-to-head clinical analysis: BETIMOL versus TRASICOR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BETIMOL versus TRASICOR.
BETIMOL vs TRASICOR
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Nonselective beta-adrenergic receptor antagonist; reduces intraocular pressure by decreasing aqueous humor production.
Non-selective beta-adrenergic antagonist with intrinsic sympathomimetic activity (partial agonist) at beta-1 and beta-2 receptors, reducing heart rate, myocardial contractility, and blood pressure.
1 drop of 0.25% or 0.5% solution in the affected eye(s) twice daily. If inadequate response, increase to 0.5% solution twice daily.
20-40 mg orally three times daily, increased to 80-160 mg daily if needed; maximum 320 mg/day.
None Documented
None Documented
2.5 to 5 hours (average 4 hours) in patients with normal renal function; may be prolonged in renal impairment (up to 8-10 hours).
Terminal elimination half-life is approximately 8-12 hours in patients with normal renal function; may be prolonged in renal impairment, requiring dose adjustment.
Primarily renal (unchanged drug and metabolites). Approximately 60-80% of a dose is excreted renally as unchanged timolol, with the remainder as inactive metabolites. Biliary/fecal excretion accounts for less than 20%.
Renal excretion of unchanged drug and metabolites accounts for approximately 80% of elimination, with about 20% appearing as unchanged drug; biliary/fecal excretion accounts for the remaining 20%.
Category C
Category C
Beta-Blocker
Beta-Blocker