Parenteral nutrition. Pharmaceutical problems of compatibility and stability. 1990

M I Barnett, and A G Cosslett, and J R Duffield, and D A Evans, and S B Hall, and D R Williams
Welsh School of Pharmacy, University of Wales College, Cardiff, United Kingdom.

A typical All-in-One (AIO) parenteral nutrition mixture in a 3-litre polymeric infusion bag will consist of lipid emulsion, amino acids, glucose, electrolytes, trace elements and vitamins. This varied mixture of chemical entities provides the potential for a number of chemical and physicochemical interactions that can compromise the clinical safety and efficacy of the product. The destabilisation of the lipid emulsion in the presence of electrolytes is a major problem. Although a predictive equation for the maximum concentrations of mono-, di- and trivalent ions causing instability has been proposed, it is too simplistic to be of significant value. The reasons for this are discussed as well as the stability implications of other additives to the parenteral nutrition mixture.

UI MeSH Term Description Entries
D010289 Parenteral Nutrition, Total The delivery of nutrients for assimilation and utilization by a patient whose sole source of nutrients is via solutions administered intravenously, subcutaneously, or by some other non-alimentary route. The basic components of TPN solutions are protein hydrolysates or free amino acid mixtures, monosaccharides, and electrolytes. Components are selected for their ability to reverse catabolism, promote anabolism, and build structural proteins. Hyperalimentation, Parenteral,Intravenous Hyperalimentation,Nutrition, Total Parenteral,Parenteral Hyperalimentation,Total Parenteral Nutrition,Hyperalimentation, Intravenous
D004344 Drug Incompatibility The quality of not being miscible with another given substance without a chemical change. One drug is not of suitable composition to be combined or mixed with another agent or substance. The incompatibility usually results in an undesirable reaction, including chemical alteration or destruction. (Dorland, 27th ed; Stedman, 25th ed) Drug Incompatibilities,Incompatibilities, Drug,Incompatibility, Drug
D004355 Drug Stability The chemical and physical integrity of a pharmaceutical product. Drug Shelf Life,Drugs Shelf Lives,Shelf Life, Drugs,Drug Stabilities,Drugs Shelf Life,Drugs Shelf Live,Life, Drugs Shelf,Shelf Life, Drug,Shelf Live, Drugs,Shelf Lives, Drugs
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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