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Record W2833571368 · doi:10.4212/cjhp.v71i3.2582

Stability of Extemporaneously Compounded Domperidone 5 mg/mL Suspension in Oral Mix in Plastic and Glass Bottles and Plastic Syringes

2018· article· en· W2833571368 on OpenAlexafffundvenueabout
Karen Lingertat-Walsh, Shirley Law, Scott E. Walker

Bibliographic record

VenueThe Canadian Journal of Hospital Pharmacy · 2018
Typearticle
Languageen
FieldMedicine
TopicPharmaceutical studies and practices
Canadian institutionsUniversity of TorontoHealth Sciences CentreSunnybrook Health Science CentreHospital for Sick Children
FundersHospital for Sick Children
KeywordsDomperidoneChromatographySuspension (topology)PolypropyleneChemistryDosage formMaterials scienceMedicineMathematics

Abstract

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<p>ABSTRACT</p><p>Background: Domperidone liquid for oral administration is not commercially available in Canada, but is needed for patients who cannot swallow intact tablets.</p><p>Objective: To evaluate the stability of domperidone 5 mg/mL suspensions prepared in Oral Mix vehicle and stored, for up to 91 days, in amber polyvinylchloride (PVC) bottles, amber glass bottles, or amber poly - ethylene terephthalate (PET) bottles at 4°C or 25°C or in polypropylene oral syringes at 25°C.</p><p>Methods: Three separate 300-mL batches of domperidone suspension 5 mg/mL were prepared with Oral Mix vehicle. Fifty-millilitre aliquots of the suspension were stored in 100-mL bottles (amber PVC, amber glass, or amber PET). Half of the bottles of each type were stored at 25°C and half at 4°C. On study days 0, 1, 2, 4, 7, 10, 14, 21, 28, 35, 42, 49, 63, 77, and 91, domperidone concentration was determined, with a validated reverse-phase, stability-indicating liquid chromatographic method, in samples drawn from each type of container stored at each temperature. In addition, 1.5-mL aliquots of a fourth 100-mL batch of suspension were stored in 3-mL oral syringes at 25°C and were tested on the same study days.</p><p>Results: The concentration of domperidone in all study samples remained above 93% of initial concentration after storage for 91 days. The percent remaining on day 91, based on fastest degradation rate (as represented by the lower limit of the 95% confidence interval [CI]), was at least 92.3% for suspensions stored at 4°C in PVC, glass, and PET bottles. With storage at 25°C, suspensions in PVC and glass bottles retained more than 90% of initial concentration, whereas suspensions in PET bottles and plastic syringes retained 88.9% and 88.0% of initial concentration, respectively.</p><p>Conclusions: Because suspensions of domperidone in PET bottles and oral syringes retained less than 90% of their initial concentration on day 91 (based on the 95% CI), it is suggested that such suspensions be stored at 4°C or 25°C in any bottle type or syringe with an assigned beyond-use date not exceeding 75 days.</p><p>RÉSUMÉ</p><p>Contexte : La dompéridone sous forme liquide pour administration orale n’est pas disponible sur le marché au Canada, mais elle est nécessaire pour les patients incapables d’avaler des comprimés entiers.<br />Objectif : Évaluer la stabilité de suspensions de dompéridone de 5 mg/mL préparées dans l’excipient Oral Mix et conservées jusqu’à 91 jours dans des flacons de polychlorure de vinyle (PVC) ambré, de verre ambré ou de polyéthylène téréphtalate (PET) ambré à 4 °C ou à 25 °C ou dans des seringues orales de polypropylène à 25 °C.</p><p>Méthodes : Trois différents lots de 300 mL de suspension de dompéridone de 5 mg/mL ont été préparés à l’aide de l’excipient Oral Mix. Des aliquotes de 50 mL de la suspension ont été entreposées dans des flacons de 100 mL de PVC ambré, de verre ambré ou de PET ambré. La moitié des flacons de chaque type était conservée à 25 °C et l’autre moitié était conservée à 4 °C. Aux jours 0, 1, 2, 4, 7, 10, 14, 21, 28, 35, 42, 49, 63, 77 et 91 de l’étude, les concentrations de dompéridone ont été évaluées sur des échantillons tirés de chaque type de flacons conservés aux deux températures à l’aide d’une épreuve validée mesurant la stabilité par chromatographie liquide en phase inverse. De plus, des aliquotes de 1,5 mL provenant d’un quatrième lot de suspension ont été entreposées dans des seringues orales de 3 mL à 25 °C et ont été analysées aux mêmes jours.</p><p>Résultats : Les concentrations de dompéridone dans l’ensemble des échantillons de l’étude conservaient plus de 93 % de la concentration initiale après un entreposage de 91 jours. Le pourcentage restant au jour 91, selon le taux de dégradation le plus rapide (correspondant à la limite inférieure de l’intervalle de confiance (IC) de 95 %), atteignait au moins 92,3 % pour les suspensions entreposées à 4 °C dans les flacons de PVC, de verre et de PET. Lorsqu’elles étaient entreposées à 25 °C, les suspensions contenues dans les flacons de PVC ou de verre conservaient plus de 90 % de la concentration initiale alors que les suspensions contenues dans les flacons de PET ou les seringues de plastique conservaient respectivement 88,9 % et 88,0 % de la concentration initiale.</p><p>Conclusions : Comme les suspensions entreposées dans les flacons de PET et les seringues orales conservaient moins de 90 % de leur concentration initiale au jour 91 (selon l’IC de 95 %), on suggère d’entreposer les suspensions de dompéridone à 4 °C ou à 25 °C dans n’importe lequel contenant en l’accompagnant d’une date limite d’utilisation ne dépassant pas 75 jours.</p>

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.072
Threshold uncertainty score0.994

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.047
GPT teacher head0.328
Teacher spread0.281 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations3
Published2018
Admission routes4
Has abstractyes

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