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The effect of concentration, reconstitution solution and pH on the stability of a remifentanil hydrochloride and propofol admixture for simultaneous co-infusion.


ABSTRACT: BACKGROUND:There are scenarios where pre-mixing and infusing analgesic and anaesthetic agents as a single intravenous (IV) solution is highly desirable; however, it is important to ensure the agents are compatible when mixed. As such, the long-term stability of a remifentanil-propofol mixture, and means of improving this, were assessed across a range of remifentanil concentrations, diluents, and time points. METHODS:Remifentanil was reconstituted with ultrapure water, 0.9% saline, 20% saline, or 8.4% sodium bicarbonate solution (the latter two chosen for their pH characteristics, rather than their use in pharmaceutical reconstitution) and then mixed with propofol (1%) or further diluted with water to derive concentrations of 10-50??g?mL-?1. Remifentanil and propofol concentrations were determined initially and then periodically for up to 24?h using high performance liquid chromatography (HPLC). Mass spectrometry (MS) was used to detect degradation products in solutions containing 30??g?mL-?1 of remifentanil. Statistical analysis was performed using ANOVA and Student's t-test, with a significance value of 0.05. RESULTS:Isolated remifentanil (pH

SUBMITTER: Henkel E 

PROVIDER: S-EPMC7664089 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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The effect of concentration, reconstitution solution and pH on the stability of a remifentanil hydrochloride and propofol admixture for simultaneous co-infusion.

Henkel Emily E   Vella Rebecca R   Behan Kieran K   Austin David D   Kruger Peter P   Fenning Andrew A  

BMC anesthesiology 20201112 1


<h4>Background</h4>There are scenarios where pre-mixing and infusing analgesic and anaesthetic agents as a single intravenous (IV) solution is highly desirable; however, it is important to ensure the agents are compatible when mixed. As such, the long-term stability of a remifentanil-propofol mixture, and means of improving this, were assessed across a range of remifentanil concentrations, diluents, and time points.<h4>Methods</h4>Remifentanil was reconstituted with ultrapure water, 0.9% saline,  ...[more]

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