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Therapeutic drug monitoring

Stability of generic meropenem solutions for administration by continuous infusion at normal and elevated temperatures.


PMID 24637698

Abstract

Administration by continuous infusion may represent an effective tool for the treatment of multidrug-resistant gram-negative related infections with meropenem. Currently, no data on chemical stability of generic bioequivalent versions of meropenem over time are available. Triplicate samples of 5 mg/mL solutions of a generic meropenem formulation, Hospira, were evaluated for chemical stability at increasing temperatures (25°C, 30°C, 35°C, and 40°C) by means of a high-performance liquid chromatography technique over 4 separate days. Degradation of generic meropenem was both time and temperature dependent, and the aqueous solutions were stable for up to 8 hours in the temperature range between 25°C and 35°C, and for up to 5 hours at 40°C. Continuous infusion of generic meropenem Hospira may be applied in clinical settings with ambient temperature below 35°C, provided that the 5 mg/mL aqueous solution is reconstituted at most after 6-8 hours.

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1392454
Meropenem, United States Pharmacopeia (USP) Reference Standard
C17H25N3O5S · 3H2O