Comparative Pharmacology
Head-to-head clinical analysis: LIPOSYN 20 versus LIPOSYN III 30.
Peer-Reviewed Evidence
Head-to-head clinical analysis: LIPOSYN 20 versus LIPOSYN III 30.
LIPOSYN 20% vs LIPOSYN III 30%
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Liposyn 20% is an intravenous fat emulsion providing essential fatty acids (linoleic and linolenic acids) and triglycerides. It serves as a caloric source and prevents essential fatty acid deficiency by supplying substrate for energy metabolism and cell membrane synthesis.
Liposyn III 30% is a lipid emulsion providing essential fatty acids (linoleic and linolenic acids) and calories for parenteral nutrition. It serves as a substrate for energy production and component of cell membranes.
Intravenous infusion: 1-2 g/kg/day (as soybean oil) initially, up to 2.5 g/kg/day, not to exceed 50% of total caloric intake; infusion rate not to exceed 0.1 g/kg/hour for first 30 minutes; if no adverse reactions, may increase to 0.2 g/kg/hour.
Adults: 1-2 g/kg/day intravenously, not to exceed 2.5 g/kg/day. Initial rate 0.5-1 mL/min for first 30 minutes, increase to 100-125 mL/h as tolerated.
None Documented
None Documented
Triglyceride clearance half-life approximately 30-60 minutes; depends on lipase activity and clinical status.
The terminal elimination half-life of the triglyceride component is approximately 30 minutes (range 20-40 minutes) in patients with normal lipid metabolism. In critically ill patients or those with impaired clearance, half-life may be prolonged.
Lipids are metabolized; <10% excreted renally as free fatty acids; biliary/fecal excretion minimal.
Liposyn III 30% is a fat emulsion; its components are metabolized like endogenous triglycerides. Clearance involves hydrolysis by lipoprotein lipase, releasing free fatty acids which are oxidized or stored. Less than 1% is excreted unchanged in urine; a small fraction is excreted in bile/feces. No significant renal or biliary elimination of intact emulsion.
Category C
Category C
Intravenous Fat Emulsion
Intravenous Fat Emulsion