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    Particulate contamination, the unintentional presence of particles in parenteral fluids, is associated with potential risks such as phlebitis and thrombophlebitis. Recent guidelines recommend the use of filter needles when withdrawing parenteral fluid from vials with a rubber stopper. However, the literature is limited and lacks clarity regarding the advantages of filter needles over conventional needles. The aim of this study was to assess the compliance of parenteral fluids regarding particulate contamination after withdrawing fluid using both conventional needles and filter needles, following the guidelines of European Pharmacopoeia (Ph. Eur.) and United States Pharmacopoeia (USP). Visible particles were counted through visual inspection and sub-visible particles were quantified utilizing the light obscuration particle count test. Particle counts for both types of needles were compared to Ph. Eur. and USP standards and differences in particle contamination were assessed using a Mann-Whitney U test. Both types of needles demonstrated compliance with Ph. Eur. and USP standards regarding particulate contamination of visible and sub-visible particles. However, filter needles exhibited a significantly higher particle count for particles with a size of ≥25 µm compared to conventional needles (p = 0.0029). In conclusion, both types of needles demonstrate suitability for aspirating fluid from vials featuring rubber stoppers regarding particulate contamination. Nevertheless, non-filter needles are preferred for withdrawing fluid from vials with a rubber stopper over filter needles due to their lower cost. Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.

    Citation

    Roland B van den Berg, Monica Ganesh, Mirjam Crul, Erik B Wilms, Eleonora L Swart, Elsbeth M Westerman. Examination of Particulate Contamination in Parenteral Injections and Infusions Following Fluid Withdrawal Utilizing Conventional Needles and Filter Needles: Assessment of Compliance and Comparative Analysis. Journal of pharmaceutical sciences. 2024 Sep;113(9):2668-2674

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    PMID: 38852673

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