Comparative Pharmacology
Head-to-head clinical analysis: AMINOSYN II 3 5 IN PLASTIC CONTAINER versus TRAVASOL 8 5 IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMINOSYN II 3 5 IN PLASTIC CONTAINER versus TRAVASOL 8 5 IN PLASTIC CONTAINER.
AMINOSYN II 3.5% IN PLASTIC CONTAINER vs TRAVASOL 8.5% IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Aminosyn II 3.5% is a crystalline amino acid solution that provides essential and nonessential amino acids for protein synthesis and maintenance of nitrogen balance. The amino acids serve as substrates for protein synthesis, and their metabolism yields nitrogen for ureagenesis and carbon skeletons for gluconeogenesis or oxidation.
TRAVASOL 8.5% is a crystalline amino acid solution that provides essential and non-essential amino acids for protein synthesis, tissue repair, and maintenance of nitrogen balance in patients unable to tolerate enteral nutrition.
Intravenous infusion of 3.5% amino acid solution at a rate of 1-2 mL/kg/hour (equivalent to 0.035-0.07 g amino acids/kg/hour) for protein supplementation, not to exceed 0.2 g nitrogen/kg/day. Dosage individualized based on metabolic needs and clinical response.
Intravenous administration as total parenteral nutrition: typical adult dose is 8.5% amino acid solution at 0.8-1.5 g protein/kg/day, infused continuously or cyclically.
None Documented
None Documented
The terminal elimination half-life of infused amino acids is not typically defined as a single value because they are rapidly cleared from plasma for protein synthesis and metabolic processes. For labeled amino acids, the plasma clearance half-life ranges from 10-30 minutes. Clinically, the half-life is short; continuous infusion is required to maintain plasma amino acid levels. In patients with hepatic or renal dysfunction, half-life may be prolonged.
Not applicable; constituent amino acids have individual half-lives (e.g., 0.5–2 hours for most L-amino acids) but overall elimination follows zero-order kinetics during continuous infusion. Clinically, infusion rate determines steady-state concentrations.
Aminosyn II 3.5% is a crystalline amino acid solution. The amino acids are metabolized and utilized for protein synthesis. Excess nitrogen is converted to urea in the liver and excreted renally as urea. Approximately 80-90% of infused amino acids are incorporated into proteins or metabolized; the remainder is excreted in urine as urea and other nitrogenous wastes. Fecal excretion is negligible (less than 2%) as amino acids are not significantly eliminated in bile. In patients with renal impairment, urea excretion is decreased, leading to azotemia.
Renal elimination of nitrogenous waste products (urea, ammonia) derived from amino acid metabolism; biliary/fecal excretion negligible. In healthy adults, >90% of infused amino nitrogen is ultimately excreted as urea in urine.
Category C
Category C
Amino Acid Solution
Amino Acid Solution