Stability of Diluted Adenosine Solutions in Polyolefin Infusion Bags

• Published in: Hospital pharmacy (Philadelphia) Vol. 48; no. 6; pp. 484 - 488
• Main Authors: Almagambetova, Elise, Hutchinson, David, Blais, Danielle M., Zhao, Fang
• Format: Journal Article
• Language: English
• Published: Los Angeles, CA SAGE Publications 01.06.2013; Thomas Land Publishers, Inc
• Subjects: Original; adenosine; concentration; fractional flow reserve; stability
• ISSN: 0018-5787; 1945-1253
• DOI: 10.1310/hpj4806-484

Background Intravenous or intracoronary adenosine is used in the cardiac catherization lab to achieve maximal coronary blood flow and determine fractional flow reserve. Objective To determine the stability of adenosine 10 and 50 µg/mL in either 0.9% sodium chloride injection or 5% dextrose injection in polyolefin infusion bags stored at 2 temperatures, refrigeration (2°C-8°C) or controlled room temperature (20°C-25°C). Methods Adenosine 10 µg/mL and 50 µg/mL solutions were prepared in 50 mL polyolefin infusion bags containing 0.9% sodium chloride injection or 5% dextrose injection and stored at controlled room temperature or under refrigeration. Each combination of concentration, diluent, and storage was prepared in triplicate. Samples were assayed using stability-indicating, reversed-phase high-performance liquid chromatography immediately at time 0 and at 24 hours, 48 hours, 7 days, and 14 days. Stability was defined as retaining 90% to 110% of the initial adenosine concentration. The samples were also visually inspected against a light background for clarity, color, and the presence of particulate matter. Results After 14 days, all samples retained 99% to 101% of the initial adenosine concentration. No considerable change in pH or visual appearance was noted. The stability data indicated no significant loss of drug due to chemical degradation or physical interactions during storage. Conclusion Adenosine solutions of 10 and 50 µg/mL were stable for at least 14 days in 50 mL polyolefin infusion bags of 0.9% sodium chloride injection or 5% dextrose injection stored at controlled room temperature and refrigerated conditions.