Assessment of practices for suspended oral drugs by tablet crushing in pediatric units

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Nguyen, David | Secretan, Phillipe-Henri | Auvity, Sylvain | Vidal, Fabrice | Postaire, Martine | Cisternino, Salvatore | Schlatter, Joël

Edité par CCSD ; Elsevier -

International audience. The aim of this study was to assess the impact of suspended drug by tablet crushing in our pediatric hospital in term of targeted dose and to identify parameters involved in the potential variability. Four usually crushed pediatric drug substances were selected: amiodarone, warfarin, hydrocortisone and captopril. Each tablet was crushed in a bag using a crusher device. Once crushed, a pre-determined volume of water was added using oral syringes before taking the necessary volume to obtain the targeted drug amount. For each drug, operators among pharmacy technicians and nurses investigated 2 targeted doses (high and low). Each suspension was assayed 3 times using the corresponding validated HPLC procedure. Statistical analysis was performed (GraphPad Prism®) to evaluate the impact of operators, the level of suction in bag, and actual drug doses. To investigate the impact of formulation change on syringe drug content, five generic drugs of amiodarone were selected. Syringes contents were compared using one-way ANOVA. Drug loss in syringe ranged from 8.1% to 54.1%. The drug loss represented 18.9% to 30.5% for amiodarone, 0.1% to 5.5% for captopril, 5.6% to 19.7% for warfarin and 5.0% to 30.7% for hydrocortisone. The comparison of level sampling of suspensions presented significant differences for amiodarone, hydrocortisone, and warfarin. Comparison of operators demonstrated significant difference between pharmacy technician and nurse (p = 0.0251). Finally, comparison of 5 generic drugs for amiodarone showed some statistical difference between the syringes content obtained when using the original medicine as compared to the generics. The physicochemical properties of each drug substance and the formulation of the drug product may both factor that should be considered. As a result, crushing tablets in water for oral administration needs a case by case assessment. Although appropriate pediatric formulations are lacking, suspend the crushed material in a given volume of water should be discouraged and not recommended because far from good practice.

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