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Levothyroxine is a narrow therapeutic index, and to avoid adverse effect associated with under or excessive dosage, the dose response is carefully titrated. The tablets are marketed with a score providing an option to split. However, there are no systematic studies evaluating the effect of splitting on dose accuracy, and current study was undertaken to(More)
The aim of this investigation was to screen and understand the product variability due to important factors affecting the characteristics CyA-PLGA nanoparticles prepared by O/W emulsification-solvent evaporation method. Independent variables studied were cyclosporine A (CyA) (X(1)), PLGA (X(2)), and emulsifier concentration namely SLS (X(3)), stirring rate(More)
Alzheimer's disease is a neurodegenerative condition that affects approximately 5 million people and is the fourth leading cause of death in America. Tacrine is one of the three drugs approved by the FDA for the treatment of Alzheimer's disease. However, the drug has a short biologic half-life of 2-3 hr and gastrointestinal, cholinergic, and hepatic adverse(More)
The purpose of this study was to develop poly(d,1-lactic-coglycolic acid) (PLGA)-based anastrozole microparticles for treatment of breast cancer. An emulsion/extraction method was used to prepare anastrozole sustained-release PLGA-based biodegradable microspheres. Gas chromatography with mass spectroscopy detection was used for the quantitation of the drug(More)
The purpose of this study was to enhance the dissolution of mefenamic acid (MFA) through the formation of solid dispersion systems, and to compare the dissolution of the unformulated dispersions with those of formulated dispersions in tablets. Solid dispersions of MFA were prepared in polyethylene glycol 3350 (PEG) as a binary system, and PEG and Tween 20(More)
Near-infrared (NIR) approaches is considered one of the most well-studied process analyzers evolving from the process analytical technology initiatives. The objective of this study was to evaluate NIR spectroscopy and imaging to assess individual components within a novel tenofovir liposomal formulation. By varying stearylamine, as a positive charge(More)
The purpose of this study was to characterize and evaluate differences of protamine sulfate, a highly basic peptide drug, obtained from five different sources, using orthogonal thermal and spectroscopic analytical methods. Thermogravimetric analysis and modulated differential scanning calorimetry showed that all five protamine sulfate samples had different(More)
Biodegradable polymers for localized delivery of antibiotics have emerged as an important approach to treating orthopaedic infections. In chronic forms of osteomyelitis which are thought to be associated with bacterial biofilm, localized delivery of a suitable antibiotic is desirable. This paper describes the formulation and in vitro evaluation of(More)
Quality by design (QBD) refers to the achievement of certain predictable quality with desired and predetermined specifications. A very useful component of the QBD is the understanding of factors and their interaction effects by a desired set of experiments. The present project deals with a case study to understand the effect of formulation variables of(More)
Several biologically relevant phospholipids were assessed as potential carriers/additives for rapidly dissolving solid formulations of piroxicam (Biopharmaceutics Classification System Class II drug). On the basis of in vitro dissolution studies, dimyristoylphosphatidylglycerol (DMPG) was ranked as the first potent dissolution rate enhancer for the model(More)