Comparative Pharmacology
Head-to-head clinical analysis: FLAXEDIL versus TRACRIUM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: FLAXEDIL versus TRACRIUM.
FLAXEDIL vs TRACRIUM
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
FLAXEDIL (gallamine triethiodide) is a nondepolarizing neuromuscular blocking agent that competitively antagonizes acetylcholine at nicotinic receptors at the neuromuscular junction, preventing muscle contraction.
Competitive antagonist of nicotinic acetylcholine receptors at the neuromuscular junction, preventing acetylcholine from binding and causing muscle relaxation.
0.08-0.12 mg/kg IV bolus for neuromuscular blockade; additional doses of 0.01-0.02 mg/kg as needed.
Initial: 0.3-0.6 mg/kg IV bolus. Maintenance: 0.1-0.2 mg/kg every 20-45 minutes as needed. Alternatively, continuous infusion: 0.005-0.01 mg/kg/min (5-10 mcg/kg/min).
None Documented
None Documented
The terminal elimination half-life of gallamine is approximately 2-4 hours in patients with normal renal function. This half-life is inversely related to creatinine clearance, and may be prolonged to 12-24 hours or more in patients with renal impairment, leading to cumulative effects and prolonged neuromuscular blockade.
Terminal elimination half-life: approximately 20 minutes (range 15-30 min). Clinically, this short half-life results in rapid spontaneous recovery after discontinuation, making it suitable for continuous infusion.
Flaxedil (gallamine triethiodide) is excreted primarily unchanged by the kidneys via glomerular filtration. Approximately 90-95% of an administered dose is eliminated in urine within 24 hours, with the remainder excreted in feces (<5%) via biliary elimination.
Renal (approximately 50-60% as unchanged drug and metabolites); biliary/fecal (minor, <10%); Hofmann elimination (non-enzymatic degradation) and ester hydrolysis contribute to clearance. Total excretion is predominantly renal.
Category C
Category C
Neuromuscular Blocking Agent
Neuromuscular Blocking Agent