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Dupont Pharma
Formulation of Sustained Release Hydrophilic Matrix Tablets of Tolcapone with the Application of…
Hydrophilic matrix tablets are a type of sustained release dosage form characterized by distributing a drug in a matrix that is usually polymeric. Tolcapone is a drug that inhibits the enzyme catechol-O-methyl transferase. In recent years, it has been shown that tolcapone is a potent inhibitor of…
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Optimized flurbiprofen sustained-release matrix pellets prepared by extrusion/spheronization
Flurbiprofen (FBP) is an ibuprofen derivative with less gastric side effects and short biological half-life (4.7–5.7 h). The study aimed to formulate FBP as a sustained-release pellets by extrusion/spheronization to overcome its short half-life and to decrease dose frequency. The wet mass of the…
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Biopharmaceutical implications of excipient variability on drug dissolution from immediate release…
Elucidating the impact of excipient variability on oral product performance in a biopharmaceutical perspective would be beneficial and allow excipient implementation on Quality by Design (QbD) approaches. The current study investigated the impact of varying viscosity of binders (hypromellose (HPMC))…
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Jet lag treatment with controlled release melatonin and caffeine
Multi-particulate Dome matrix with sustained-release melatonin and delayed-release caffeine was designed to restore jet lag sleep-wake cycle. The polymeric pellets were produced using extrusion-spheronization technique and fluid-bed coated when applicable. The compact and Dome module were produced…
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Development of Low Dose Micro-tablets by High Shear Wet Granulation Process
Low dose micro-tablets with acceptable quality attributes, specifically content uniformity (CU), would not only enhance the dose flexibility in the clinic, but also decrease excipient burden in pediatric population. Considering the CU challenges associated with directly compressed low dose…
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In-Depth Study into Polymeric Materials in Low-Density Gastroretentive Formulations
The extensive use of oral dosage forms for the treatment of diseases may be linked to deficient pharmacokinetic properties. In some cases the drug is barely soluble; in others, the rapid transit of the formulation through the gastrointestinal tract (GIT) makes it dicult to achieve therapeutic levels…
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Conversion of indomethacin nanosuspensions into solid dosage forms via fluid bed granulation and…
Preparation of pharmaceutical nanosuspensions is a popular technique to increase the dissolution velocity of poorly water-soluble drugs. Subsequent drying into a compaction-ready powder or granule is a critical process due to possible adverse solid characteristics and the risk of growth of…
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Development of a mini-tablet-in-capsule dosage form for macromolecular drug delivery
Oral delivery of protein and peptide drugs faces immense challenges, partially due to the inherent unfavourable characteristics of the molecules and partially due to the unfavourable gastrointestinal environment. These barriers to oral protein drug delivery include the large molecular size,…
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Regulating the pH of bicarbonate solutions without purging gases: Application to dissolution testing…
Dissolution media based on bicarbonate buffers closely mimic the environment of intestinal fluids and thus improve in vitro in vivo correlation compared to phosphate buffers. Purging gases into the medium is used as a method to stabilise bicarbonate buffers; however, this causes issues due to the…
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Cushioning Pellets based on Microcrystalline Cellulose – Crospovidone Blends for MUPS Tableting
Compaction of multiple-unit pellet system (MUPS) tablets has been extensively reported to be potentially challenging. Thus, there is a need for non-segregating cushioning agents to mitigate the deleterious effect of the compaction forces. This study was designed to investigate the use of porous…
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