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A Simplified Extemporaneously Prepared Potassium Chloride Oral Solution

Author(s):  Tannous Elias, Tal Yana, Amarny Kamal

Issue:  Sep/Oct 2016 - Volume 20, Number 5
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Abstract:  Although commercial preparations of oral potassium supplements are usually available, there are times when our Medical Center is faced with situations in which the oral solution of potassium chloride is not available. This solution is necessary for our pediatric outpatients who cannot swallow tablets and need an oral solution. Moreover, there are no studies available which describe an extemporaneously prepared potassium chloride oral solution on which we can rely for assigning a beyond-use date. The aim of this study was to formulate an extemporaneous pediatric oral solution of potassium chloride and to determine the physical and chemical stability of this preparation. We prepared 1 mMoL/mL by withdrawing 25 mL of potassium chloride 14.9%. Ora-Sweet SF was added to 50 mL in a metered flask. The solution was kept refrigerated (2°C to 8°C). Samples were withdrawn to measure potassium concentration, pH, and microbial overgrowth. The test was performed by our biochemical laboratory. The oral solution of potassium chloride 1 mMoL/mL stored at 2°C to 8°C maintained at least 91% of the initial concentration for 28 days. There were no notable changes in pH, and the solution remained physically stable with no visual microbial growth. The oral solution of potassium chloride 1 mMoL/mL prepared in Ora-Sweet and stored at 2°C to 8°C in amber glass bottles is expected to remain stable for 28 days.

Related Keywords: Elias Tannous, BScPharm, Yana Tal, MSc, Kamal Amarny, BScPharm, potassium chloride, oral solution, electrolyte disorders, metabolic abnormalities, electrolyte supplementation, pediatric electrolyte supplement solutions, drug shortage, stability


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