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Physicochemical and Microbiological Stability of Extemporaneously Compounded Hydrocortisone Oral Suspensions in PCCA Base, SuspendIt

Author(s):  Pramar Yashoda V, Mandal Tarun K, Bostanian Levon A, Kader Cyndy, Morris Tommy C, Graves Richard A

Issue:  Sep/Oct 2021 - Volume 25, Number 5
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Abstract:  Hydrocortisone is indicated in the treatment of primary or secondary adrenal insufficiency. The oral dosage regimen of hydrocortisone needs to be individualized in the treatment of congenital adrenal hyperplasia, especially in pediatric patients. A review of the therapeutic uses of hydrocortisone reveals the need for flexibility in dosing. This flexibility is readily achieved using an oral liquid dosage form. However, no commercial liquid dosage form of hydrocortisone currently exists. Hydrocortisone is commercially available as 5-mg, 10-mg, and 20-mg tablets. An extemporaneously compounded suspension from pure drug powder would provide a convenient option to meet unique patient needs. The purpose of this study was to determine the physicochemical and microbiological stability of extemporaneously compounded hydrocortisone suspensions in PCCA Base, SuspendIt. This base is a sugar-free, paraben-free, dye-free, and gluten-free thixotropic vehicle containing a natural sweetener obtained from the monk fruit. The study design included two hydrocortisone concentrations to provide stability documentation over a bracketed concentration range for eventual use by compounding pharmacists. A robust stability-indicating high-performance liquid chromatographic assay for the determination of the chemical stability of hydrocortisone in SuspendIt was developed and validated. Suspensions of hydrocortisone were prepared in SuspendIt at 1-mg/mL and 20-mg/mL concentrations, selected to represent a range within which the drug is commonly dosed. Samples were stored in plastic amber prescription bottles at two temperature conditions (5°C and 25°C). Samples were assayed initially and on the following days: 7, 15, 28, 45, 60, 91, 120, and 185. Physical data such as pH, viscosity, and appearance were also noted. Microbiological stability was tested. All measurements were obtained in triplicate. A stable extemporaneous product is defined as one that retains at least 90% of the initial drug concentration throughout the sampling period and is protected against microbial growth. The study showed that hydrocortisone concentrations did not go below 94% of the label claim (initial drug concentration) at both temperatures studied. No microbial growth was observed. Viscosity and pH values did not change significantly. This study demonstrates that hydrocortisone is physically, chemically, and microbiologically stable in SuspendIt for 185 days in the refrigerator and at room temperature, thus providing a viable, compounded alternative for hydrocortisone in a liquid dosage form, with an extended beyond-use date to meet patient needs.

Related Keywords: Yashoda V. Pramar, PhD, Tarun K. Mandal, PhD, Levon A. Bostanian, PhD, Cyndy Kader, PharmD Student, Tommy C. Morris, PhD, Richard A. Graves, MS, hydrocortisone, oral suspension, physical stability, chemical stability, microbiological stability, adrenal insufficiency, children, formulations

Related Categories: FORMULATIONS, PEER-REVIEWED, STABILITIES, COMPATIBILITIES, ALLERGY/IMMUNOLOGY/INFLAMMATION, ENDOCRINOLOGY/HORMONES/ MENOPAUSE/ANDROPAUSE

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