Abstract
This study aimed to determine the physical compatibility of alprostadil with 17 continuous infusion drugs commonly administered in neonatal intensive care units. Test samples were prepared in a laminar airflow hood. Alprostadil 20 mcg/ml was mixed with each drug in a 1:1 ratio, in two orders of mixing. Physical stability of the admixtures was assessed by visual examination and by measuring turbidity. Visual examination was conducted by two observers by two methods: visual examination against a black and white background under normal fluorescent light and using a high-intensity monodirectional light. pH was measured as chemical stability predictor. Evaluations were performed immediately and 4 h after mixing. An additional visual control was performed at 24 h. Visual examination was positive or doubtful for the four drug combinations not considered compatible. Turbidity values were under 0.5 NTU throughout the study in all samples. No modifications of one pH unit or more was detected in any drug pair over time.
Conclusion: Alprostadil was considered physical compatible with 13 drugs (adrenalin, amiodarone, calcium gluconate, dobutamine, dopamine, fentanyl, flecainide, furosemide, heparin, ketamine, midazolam, milrinone and morphine). Incompatibility could not be ruled out for 3 drugs (cisatracurium, dexmedetomidine and noradrenalin), and insulin was considered incompatible with alprostadil.
What is Known: • Y-site administration is common in neonatal intensive care units, and volume of diluents and rate of infusions in newborns were lower than in adults which might result in high concentrations and prolonged contact time at Y-site administration. • Available data about compatibility of alprostadil with other drugs was scarce. | |
What is New: • Alprostadil was compatible with 13 drugs commonly used in neonatal intensive care units. • Insulin was considered incompatible with alprostadil, and incompatibility cannot be ruled out for cisatracurium, dexmedetomidine and noradrenalin with alprostadil. |
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Abbreviations
- IV:
-
Intravenous
- NTU:
-
Nephelometric turbidity unit
- NICUs:
-
Neonatal intensive care units
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Acknowledgements
We wish to thank M Urrutia and C Olalde (Hospital Universitario Araba), A Aguirre (Hospital Universitario Basurto), E Guerra and B Loureiro (Hospital Universitario Cruces) and A Montoro (Hospital Universitario Donostia) for their contribution in the drugs and their administration condition selection and by answering the initial survey. We would also like to express our gratitude to I Tho and their research group in the University of Oslo for sharing their knowledge and experience in stability studies which has contributed to improve this work.
Funding
Financial support was obtained for research projects of the Department of Health of the Basque Government: physical stability study of alprostadil with Y-site-administrated drugs in neonatal intensive care units: code 2018111014; 2018–2020. This work was supported by the Maternal and Child Health and Development Research Network (SAMID), RETICS funded by the PN I+D+I 2013–2016 (Spain), ISCIII-Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022.
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All authors made substantial contributions to conception and design of the study, and/or acquisition of data and/or analysis and interpretation of data; all authors participated in drafting or critically revising the manuscript for important intellectual content; all authors gave final approval of the version submitted; and all authors agreed to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
Conceived the idea and developed the project: Amaya de Basagoiti (AdB) and Ainara Campino (AC)
Designed the study protocol: AdB, AC and Alberto Katsumiti (AK)
Prepared the study samples and collected the related data: AdB, AK, AC, Alazne Bustinza (AB), Silvia Abascal (SA), Pilar Pascual (PP)
Conducted the experimental studies in laboratory and collected the data: AdB, AC, AK, AB, Leocadio R López-Giménez (LRL) and Monike de Miguel (MdM)
Analysed and interpreted the results: AdB, AC, AK
Wrote the manuscript: AdB
Reviewed the manuscript drafts and approved the final version: AC
Approved the final manuscript version: all authors
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De Basagoiti, A., Katsumiti, A., Abascal, S. et al. Physical compatibility of alprostadil with selected drugs commonly used in the neonatal intensive care units. Eur J Pediatr 180, 1169–1176 (2021). https://doi.org/10.1007/s00431-020-03854-7
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DOI: https://doi.org/10.1007/s00431-020-03854-7