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Record W1543513131 · doi:10.4212/cjhp.v59i4.256

Stability of Sulfasalazine Oral Suspension

2006· article· en· W1543513131 on OpenAlexaffvenueabout
Karen Lingertat-Walsh, Scott E. Walker, Shirley Law, Marissa Abesamis, Pacita Sales

Bibliographic record

VenueThe Canadian Journal of Hospital Pharmacy · 2006
Typearticle
Languageen
FieldMedicine
TopicPharmaceutical studies and practices
Canadian institutionsHealth Sciences CentreSunnybrook Health Science CentreHospital for Sick Children
Fundersnot available
KeywordsSulfasalazineSuspension (topology)ChromatographyChemistryMedicine

Abstract

fetched live from OpenAlex

ABSTRACT Background: Because no liquid formulation of sulfasalazine for oral administration is commercially available in Canada, an extemporaneous oral liquid formulation is required for administration to children and other patients who cannot swallow intact tablets. Objective: To evaluate the stability of a 100 mg/mL suspension of sulfasalazine prepared in a mixture of 50% Ora-Sweet syrup and 50% Ora-Plus suspending vehicle and stored in 3 types of container (amber glass, amber polyethylene terephthalate [PET], and amber polyvinylchloride [PVC]) over 91 days at 4°C and 23°C. Methods: A reverse-phase stability-indicating liquid chromatographic method was validated before the study. A sulfasalazine suspension (100 mg/mL) was prepared in a mixture of 50% Ora-Sweet and 50% Ora-Plus. Fifty-millilitre aliquots of the suspension were stored in 100-mL bottles (either amber glass, amber PET, or amber PVC). Half of the bottles of each type of container were stored at 23°C ± 2°C and the other half were stored at 4°C. On study days 0, 2, 7, 14, 21, 28, 42, and 91, the sulfasalazine concentration was determined in samples drawn from 3 bottles stored at each temperature in each type of container. Results: The concentration of sulfasalazine in all study samples remained within 7% of the initial concentration. The concentration was significantly higher in suspensions stored in PET containers (p = 0.017). No differences in concentration related to storage temperature were observed. Conclusion: Suspensions of sulfasalazine (100 mg/mL) in a mixture of 50% Ora-Sweet and 50% Ora-Plus retained more than 94% of the initial sulfasalazine concentration for 91 days when stored in amber glass, amber PET, or amber PVC containers at 23°C or 4°C. RESUME Historique : Puisque la sulfasalazine sous forme liquide pour administration par voie orale n’est pas offerte dans le commerce au Canada, une telle preparation doit etre effectuee extemporanement pour l’administration aux enfants et aux autres patients qui sont incapables d’avaler des comprimes intacts. Objectif : Evaluer la stabilite d’une suspension de 100 mg/mL de sulfasalazine dans un excipient compose de parties egales d’Ora-Sweet (un edulcolorant) et d’Ora-Plus (un agent de suspension), conservees dans trois types de flacons (de verre ambre, de polyethylene terephtalate [PET] ambre ou de polychlorure de vinyle [PVC] ambre) pendant une periode de 91 jours a une temperature de 4 °C et de 23 °C. Methodes : Une epreuve de stabilite par chromatographie liquide en phase inverse a ete validee avant l’etude. On a prepare une suspension de sulfasalazine (100 mg/mL) dans un melange 1:1 d’Ora-Sweet et d’Ora-Plus. Des aliquotes de 50 mL de la suspension ont ete entreposees dans des flacons de 100 mL (de verre ambre, de PET ambre ou de PVC ambre). La moitie de chaque type de flacons a ete entreposee a une temperature de 23°C ± 2°C et l’autre moitie, a une temperature de 4°C. Aux jours 0, 2, 7, 14, 21, 28, 42 et 91 de l’etude, la concentration en sulfasalazine a ete determinee a partir d’echantillons tires de trois flacons de chaque type entreposes a chacune des temperatures. Resultats : La concentration en sulfasalazine dans chacun des echantillons evalues est demeuree a pres de 7 % de la concentration initiale. La concentration etait significativement superieure dans les suspensions conservees dans les flacons de PET (p = 0,017). Aucune difference de concentration liee a la temperature d’entreposage n’a ete observee. Conclusion : Les suspensions de sulfasalazine (100 mg/mL) preparees dans un melange 1:1 d’Ora-Sweet et d’Ora-Plus ont conserve plus de 94 % de leur concentration initiale de sulfasalazine pendant 91 jours lorsqu’elles etaient conservees dans des flacons de verre ambre, de PET ambre ou de PVC ambre, a des temperatures de 23 °C ou de 4 °C.

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)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.476
Threshold uncertainty score0.984

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.056
GPT teacher head0.343
Teacher spread0.287 · 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".

Quick stats

Citations3
Published2006
Admission routes3
Has abstractyes

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