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Recent Patents on Drug Delivery & Formulation


ISSN (Print): 1872-2113
ISSN (Online): 2212-4039

General Review Article

An Overview on Recent Patents and Technologies on Solid Dispersion

Author(s): Ritu Kaushik, Vikas Budhwar and Deepak Kaushik *

Volume 14 , Issue 1 , 2020

Page: [63 - 74] Pages: 12

DOI: 10.2174/1872211314666200117094406


The oral bioavailability enhancement of poorly water-soluble medicaments is still one of the most complicated aspects of the formulation development. Various approaches are currently available for solubility and rate of dissolution enhancement such as salt formation, solubilization and reduction of particle size, each with its own limitations and advantages. Solid dispersion is one of the most suitable approaches for the formulation development of poorly water-soluble drugs. The popularity of solid dispersion is evident from the increasing number of patent applications and patents granted in this field during recent years. This article reviews the various approaches for the preparation of solid dispersion such as a solvent melting, hot-melt extrusion method, solvent evaporation method, cryogenic processing approaches etc. from the perspective of patents filed or granted for these techniques. Some of the aspects taken into account before the preparation of solid dispersions are carrier selection and physicchemical testing along with an insight into the molecular arrangement of medicaments in solid dispersion. The manuscript further highlights various commercial patented technology platforms such as Solumertm, Hovione and Kinetisol which are based on the concept of solid dispersions.

Keywords: Solid dispersion, patents, dissolution, bioavailability, solubility, patented platform, carrier.

Graphical Abstract
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