Track topics on Twitter Track topics that are important to you
Extemporaneous suspensions of the antihypertensive agents furosemide, spironolactone and hydrochlorothiazide for pediatric use have been prepared at University Hospital (Federal University of Santa Catarina - Brazil). The aim of this work was to investigate the physicochemical and microbiological stability of these suspensions over the estimated shelf-life period of seven days and, if necessary, to optimize the formulations by improving the chemical stability. The pediatric suspensions were prepared using drug raw material and were stored at 25 ± 2°C and 5 ± 3°C. Chemical stability was evaluated by HPLC assay of the suspensions for drug content. Physical stability was evaluated by sedimentation volume, redispersibility, particle size, and zeta potential. Viable bacterial and fungal contaminations were assessed according to the official compendium. Furosemide and spironolactone suspensions as prepared herein can be stored for 7 days. However, the hydrochlorothiazide suspension formulation at pH 6.5 demonstrated poor chemical stability and was optimized by adjusting the pH to 3.3 where the drug exhibited acceptable stability. The optimized formulation demonstrated to be stable over the required period of 7 days.
Department of Pharmaceutical Sciences, Health Science Centre, Federal University of Santa Catarina , Quality Control Laboratory, Florianópolis-SC , Brazil.
This article was published in the following journal.
Name: Pharmaceutical development and technology
This study investigated the effects of glucono-δ-lactone (GdL) addition on physicochemical and microbiological characteristics of fermented sausages during ripening and drying. Five batches of sausag...
The characterization and stability evaluation of food and food constituents (chemical active ingredient/microorganism) for which nutrition or health claims want to be requested are essential for the s...
Many pharmacologic therapies are available for treatment of post-coarctectomy hypertension in pediatric patients, which may lead to variability in care. Evaluation of trends in pharmacotherapy is nece...
The aim of this trial was to describe physicochemical, microbiological and organoleptic characteristics of dry fermented sausages produced from high hydrostatic pressure (HHP) pre-processed trimmings....
The aim of this study was to use aqueous suspensions of silver nanoparticles with a wide spectrum of particle sizes, variable morphology, high stability, and appropriate physicochemical properties to ...
The overall aim of the study is to investigate the Ponto wide implant considering; initial implant stability, stability over time, skin reaction and long term success when loaded at 3 week...
The main objective is to evaluate the stability of EEG features on an individual level.
Previous research has shown the oxidizing properties and microbiological efficacies of chlorine dioxide (ClO2). However, no clinical studies have investigated its microbiological efficacie...
To study the effect of sibutramine treatment on weight reduction and blood pressure improvement in three groups with antihypertensive therapy whose blood pressure was not adequately contro...
To assess factors that may influence adherence to antihypertensive drug therapy.
Colloids with liquid continuous phase and solid dispersed phase; the term is used loosely also for solid-in-gas (AEROSOLS) and other colloidal systems; water-insoluble drugs may be given as suspensions.
Studies designed to examine associations, commonly, hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The common types of analytic study are CASE-CONTROL STUDIES; COHORT STUDIES; and CROSS-SECTIONAL STUDIES.
Sequences within RNA that regulate the processing, stability (RNA STABILITY) or translation (TRANSLATION, GENETIC) of RNA.
Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.
Physical reactions involved in the formation of or changes in the structure of atoms and molecules and their interactions.
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...
Clinical Approvals Clinical Trials Drug Approvals Drug Delivery Drug Discovery Generics Drugs Prescription Drugs In the fields of medicine, biotechnology and pharmacology, drug discovery is the process by which drugs are dis...