Comparative Pharmacology
Head-to-head clinical analysis: AMINOSYN II 3 5 IN PLASTIC CONTAINER versus TRAVASOL 8 5 W ELECTROLYTES.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMINOSYN II 3 5 IN PLASTIC CONTAINER versus TRAVASOL 8 5 W ELECTROLYTES.
AMINOSYN II 3.5% IN PLASTIC CONTAINER vs TRAVASOL 8.5% W/ ELECTROLYTES
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% with Electrolytes is a parenteral nutrition solution providing amino acids for protein synthesis, electrolytes for maintenance of acid-base balance and osmotic pressure, and calories to prevent protein catabolism and promote anabolism.
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 infusion via central vein: 500 mL to 2000 mL per day, infused at a rate not exceeding 0.2 g/kg/hour of amino acids. Dosing individualized based on caloric and protein requirements.
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.
Variable; amino acids have rapid distribution (minutes) and metabolic elimination (half-life ~1-2 hours for most). Clinical context: continuous infusion maintains steady state; half-life not typically used for dosing but reflects rapid clearance.
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.
Components are eliminated via metabolic pathways (e.g., amino acids undergo deamination, protein synthesis) and renal excretion of waste products (urea, creatinine). 100% of nitrogenous waste is renally excreted; electrolytes are excreted renally proportional to intake and renal function.
Category C
Category C
Amino Acid Solution
Amino Acid Solution