PMID: 2114791Jul 1, 1990Paper

In vitro evaluation of the stability of ranitidine hydrochloride in total parenteral nutrient mixtures

American Journal of Hospital Pharmacy
M F WilliamsG Dukes

Abstract

The stability of ranitidine hydrochloride in various total parenteral nutrient (TPN) solutions was studied, as well as the effect of ranitidine on the stability of lipid emulsion and amino acids in these solutions. Ranitidine hydrochloride 25 mg/mL was added to each of the following mixtures to make final concentrations of approximately 50 and 100 mg/L: (1) TPN solution containing 4.5% amino acids, 22.7% dextrose, and electrolytes; (2) 10% lipid emulsion; (3) TPN solution containing 3.7% amino acids, 18.5% dextrose, 3.7% lipid emulsion, and electrolytes (all-in-one mixture); and (4) 0.9% sodium chloride injection. Mixtures were tested at room temperature and at 4 degrees C and were either protected from or exposed to fluorescent light. Sampling was done at 0, 12, 24, 36, and 48 hours, and the ranitidine concentration was determined by high-performance liquid chromatography. Samples were also analyzed for lipid particle size distribution and for amino acid content. At 48 hours, the all-in-one mixtures retained 86.0% to 91.4% of the initial ranitidine concentration. With one exception (ranitidine 50 mg/L in 0.9% sodium chloride injection, stored at room temperature and not protected from light), all other solutions retained at le...Continue Reading

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