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Solid Dispersion
High dose nanocrystalline solid dispersion powder of voriconazole for inhalation
In the current work, we aimed to deliver high dose of voriconazole (VRC) to lung through dry powder for inhalation (DPIs). Furthermore, the research tested the hypothesis that drug nanocrystals can escape the clearance mechanisms in lung by virtue of their size and rapid dissolution. High dose…
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Molecular mobility in Soluplus, a polymer with extremely low dynamic fragility; A study by thermally…
This is a thermostimulated depolarization currents (TSDC) study of the slow molecular mobility in Soluplus®, an amorphous polymer used in the production of amorphous solid dispersions for pharmaceutical purposes. We carried out this study due to the importance of these applications and the very…
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Solubility Enhancement of Ibuprofen by Adsorption onto Spherical Porous Calcium Silicate
The solubility of a drug is higher when it is in an amorphous form than when it is in a crystalline form. To enhance the solubility of ibuprofen (IBU), a poorly water-soluble drug, we attempted to adsorb IBU onto spherical porous calcium silicate (Florite® PS300, PS300) in two ways: the evaporation…
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Designing highly porous amorphous celecoxib particles by spray freeze drying leads to accelerated…
Poorly water-soluble drugs are still a major challenge to overcome in order to achieve sufficiently high oral bioavailability. Spray freeze drying (SFD) is proposed here as an alternative for the preparation of amorphous, free-flowing porous celecoxib spheres for enhanced drug dissolution. Tertiary…
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Effects of polymer addition on the non-strongly interacting binary co-amorphous system…
Co-amorphous systems have been developed to address the solubility challenge of poorly water-soluble crystalline drugs. However, due to the thermodynamic instability of amorphous forms, amorphization may result in recrystallization during manufacturing, storage, or dissolution, which is one of the…
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Prediction of Solid-State Form of SLS 3D Printed Medicines Using NIR and Raman Spectroscopy
Selective laser sintering (SLS) 3D printing is capable of revolutionising pharmaceutical manufacturing, by producing amorphous solid dispersions in a one-step manufacturing process. Here, 3D-printed formulations loaded with a model BCS class II drug (20% w/w itraconazole) and three grades of…
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Enhancing solubility and bioavailability of coenzyme Q10: formulation of solid dispersions using…
Improving the aqueous solubility of poorly soluble compounds have been a major issue in the pharmaceutical industry. In the present study, binary amorphous solid dispersions (SDs) of Coenzyme Q10 (CoQ10), a biopharmaceutics classification system (BCS) II compound and Soluplus® were prepared to…
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Revealing the roles of polymers in supersaturation stabilization from the perspective of…
Formulating drugs into amorphous solid dispersions (ASDs) represents an attractive means to enhance the aqueous solubility of drugs. Furthermore, water-soluble polymers have proven highly advantageous for stabilizing supersaturated solutions of ASDs. However, the performance and mechanism of various…
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Moisture sorption by polymeric excipients commonly used in amorphous solid dispersion and its effect…
Moisture plays a critical role in the stability of amorphous solid dispersions (ASD) as it can lower the glass transition temperature (Tg) and thereby increase molecular mobility resulting in drug crystallization. A systematic study on moisture sorption by four polyvinylpyrrolidone (PVP) having…
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Factors Influencing the Crystallization-Onset Time of Metastable ASDs
In formulation development, amorphous solid dispersions (ASD) are considered to improve the bioavailability of poorly water-soluble active pharmaceutical ingredients (APIs). However, the crystallization of APIs often limits long-term stability and thus the shelf life of ASDs. It has already been…
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