Comparison between Original and Generic Versions of Ceftriaxone Sodium Preparation for Injection: Compatibility with Calcium-Containing Product

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The purpose of this study was to compare the compatibility of ROCEPHINE® Intravenous, the original manufacturer’s ceftriaxone sodium preparation for injection, and seven generic versions thereof, with various calcium chloride injection 2%. The influence of calcium ion concentration, storage time and shaking strength on the appearance and quantity of insoluble microparticles in mixed solutions was examined using a light obscuration particle counter. In all products, the observed number of insoluble microparticles was proportional to the calcium ion concentration, storage time and shaking strength after the addition of calcium chloride solution. In several of the generic products, the number of insoluble microparticles was significantly higher than those of the original product, while in others it was lower. We evaluated the quality of the original and 7 generic preparations, measured the content of impurity and pH of the various ceftriaxone solutions, as impurity content and pH of solution are possible factor affecting compatibility. Three impurities were found in all products. The impurity content of several generic products, as estimated from their peak area on high performance liquid chromatography (HPLC), was significantly lower than that of the original product. pH of solution was difference between products. Although it was difficult that impurity and pH of solution verify critical factor affecting compatibility. The results show that there are differences in the appearance of insoluble microparticles between the original product and seven generic products, when calcium chloride injection 2% solution is added to the product.

Comparison between Original and Generic Versions of Ceftriaxone Sodium Preparation for Injection: Compatibility with Calcium-Containing Product

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