Comparative Pharmacology
Head-to-head clinical analysis: AMINOSYN II 3 5 M versus AMINOSYN II 5 W ELECTROLYTES IN DEXTROSE 25 W CALCIUM IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMINOSYN II 3 5 M versus AMINOSYN II 5 W ELECTROLYTES IN DEXTROSE 25 W CALCIUM IN PLASTIC CONTAINER.
AMINOSYN II 3.5% M vs AMINOSYN II 5% W/ ELECTROLYTES IN DEXTROSE 25% W/ CALCIUM IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Provides essential and nonessential amino acids for protein synthesis, serving as substrates for anabolic processes in parenteral nutrition.
Aminosyn II 5% with electrolytes in dextrose 25% provides amino acids for protein synthesis, dextrose for caloric supply, and electrolytes for maintenance of acid-base balance and cellular function. Calcium is included for bone health and neuromuscular function.
Intravenous infusion of 1.2 to 2.2 g amino acids per kg per day, adjusted to meet metabolic and nutritional requirements. Typical adult dose: initial infusion rate of 50 mL/hour, increasing to 125 mL/hour (4.4 g amino acids per hour) based on tolerance. Not for direct peripheral administration without supplementation of electrolytes and/or dextrose.
Intravenous; initial adult dose 1.0 g/kg/day of amino acids, up to 1.5 g/kg/day; dextrose rate 5 mg/kg/min initially, titrate to 7 mg/kg/min; daily dose adjusted based on metabolic requirements, electrolytes as per serum levels.
None Documented
None Documented
The terminal elimination half-life of amino acids from the infusion mixture is not uniformly defined; however, individual amino acids have half-lives ranging from 10 to 30 minutes. For the mixture, the effective half-life is clinically considered to be approximately 1-2 hours, reflecting rapid metabolic clearance. In renal impairment, the half-life may be prolonged due to reduced urea clearance.
Not applicable as a single entity; component amino acids have half-lives ranging from minutes (e.g., alanine) to hours (e.g., branched-chain amino acids); dextrose half-life ~1.5-2 hours in normal glucose metabolism; clinical context: continuous infusion maintains steady state.
Aminosyn II 3.5% M is a crystalline amino acid solution. Amino acids are primarily eliminated by metabolic utilization for protein synthesis and energy production. Excess amino acids undergo deamination, with nitrogen excreted as urea in urine via renal route. Fecal and biliary excretion are negligible. Approximately 80-90% of infused nitrogen is recovered as urea in urine in patients with normal renal function.
Renal: amino acids and dextrose metabolites excreted primarily as urea, CO2, and water; electrolytes excreted renally with fractional excretion varying by individual needs; no significant biliary or fecal elimination.
Category C
Category C
Amino Acid Solution
Amino Acid Solution