In vitro stability of three oral vancomycin preparations stored at 2- 5 °C and ambient room temperature for up to 60 days against 100 Clostridioides (Clostridium) difficile and 51Staphylococcus aureus strains

Published on Jun 11, 2018in Anaerobe3.331
· DOI :10.1016/J.ANAEROBE.2018.06.003
Ellie J. C. Goldstein66
Estimated H-index: 66
(UCLA: University of California, Los Angeles),
Diane M. Citron57
Estimated H-index: 57
+ 1 AuthorsEliza S. Leoncio5
Estimated H-index: 5
Abstract Oral vancomycin is used to treat Clostridioides (Clostridium) difficile infection. Several different preparations are available including reconstituted IV solutions, vancomycin capsules, and grape flavored vancomycin oral solution kit (CutisPharma). The shelf life for IV after reconstitution varies between 7 and 14 days under refrigeration, and a standard 30 days for vancomycin oral solution kit (CutisPharma). The impact of storage on the in vitro potency was determined in 3 different vancomycin preparations by measuring MICs for 100 strains of C. difficile and 25 strains of Staphylococcus aureus, at T0, 14, 30, and 60 days, stored at ambient (RT) and refrigerated (2–5 °C) temperatures. All vancomycin preparations showed potency over a period of 60 days regardless of storage conditions. However, the capsule preparation showed mold after 60 days at room temperature, but unlike vancomycin oral solution kit, which retained a clear appearance, the IV and capsule preps showed evidence of crystallization.
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