Comparative Pharmacology
Head-to-head clinical analysis: AMINO ACIDS versus AMINOSOL 5.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMINO ACIDS versus AMINOSOL 5.
AMINO ACIDS vs AMINOSOL 5%
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Amino acids are building blocks for protein synthesis and serve as precursors for neurotransmitters, hormones, and other nitrogenous compounds. They modulate nitrogen balance and support cellular repair and growth.
Aminosyl 5% is a parenteral 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 feeding.
1-2 g/kg/day as continuous IV infusion or as a component of parenteral nutrition.
Intravenous infusion: 500 mL to 1 L of 5% solution over 8-12 hours, providing 25-50 g of amino acids. Maximum infusion rate: 0.1 g/kg/hour. Dose based on metabolic requirements and clinical status.
None Documented
None Documented
Variable; endogenous amino acids: 10–30 min for clearance from plasma; administered doses: distribution half-life ~5–10 min, terminal elimination half-life ~15–30 min, reflecting rapid metabolic utilization and renal reabsorption.
The half-life of infused amino acids is not defined as they are endogenous compounds. However, the nitrogen from amino acids has a biological half-life of approximately 6-18 hours, depending on metabolic activity. As part of total parenteral nutrition, the elimination half-life of infused amino acids is influenced by protein turnover and catabolism.
Renal: >95% as amino acids and metabolites, primarily reabsorbed; <5% unchanged. Fecal/biliary: negligible (<1%).
Excretion of infused amino acids is primarily renal, with small amounts lost via feces and skin. Approximately 85-95% of the nitrogen load is excreted in urine as urea, ammonia, and other nitrogenous wastes. Less than 5% is eliminated in feces.
Category C
Category C
Parenteral Nutrition Solution
Parenteral Nutrition Solution