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Stability of benzylpenicillin for continuous intravenous infusions: An isotonic formulation for therapeutic use and a low-dose formulation for clinical trial

The objectives of this study were to develop a stability-indicating high performance liquid chromatography assay for benzylpenicillin in pharmaceutical fluids, and to investigate the stability of (i) isotonic citrate-buffered BPC solutions at the clinically relevant concentration of 30 mg/mL, and (ii) low concentration citrate-buffered BPC intravenous infusions (5–30 μg/mL).

Citation:
Batty KT, Page-Sharp M, Salman S, Hla TK, Manning L. Stability of benzylpenicillin for continuous intravenous infusions: An isotonic formulation for therapeutic use and a low-dose formulation for clinical trial. J Infect Chemother. 2022.

Keywords:
Benzylpenicillin; HPLC (High-performance liquid chromatography); Intravenous infusion; Sodium citrate; Stability

Abstract:
The objectives of this study were to develop a stability-indicating high performance liquid chromatography assay for benzylpenicillin in pharmaceutical fluids, and to investigate the stability of (i) isotonic citrate-buffered BPC solutions at the clinically relevant concentration of 30 mg/mL, and (ii) low concentration citrate-buffered BPC intravenous infusions (5–30 μg/mL).