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Hydrophilization

Hydrophilization is a process used for hydrophobic drugs to increase their release rate from capsules, which is dependent on the rate of dissolution, by covering the surface of the drug particles with minute droplets of a hydrophilic polymer solution.[1]

Method edit

The process is accomplished by vigorous mixing of the hydrophobic drug with the aqueous solution of the hydrophilic polymer solution, leading to production of small particles of the drug covered with small droplets of the hydrophilic polymer solution.[1]

Uses edit

This process in tablet or capsule formulations enhance the disintegration of the drug/excipient bulk and so enhance the rate of dissolution of the hydrophobic drug.[1]

Examples of the hydrophilic polymers are methyl cellulose and hydroxyethyl cellulose.[2]

References edit

  1. ^ a b c Lerk CF, Lagas M, Fell JT, Nauta P (July 1978). "Effect of hydrophilization of hydrophobic drugs on release rate from capsules". Journal of Pharmaceutical Sciences. 67 (7): 935–9. doi:10.1002/jps.2600670716. PMID 660511.
  2. ^ Panraksa, Pattaraporn; Udomsom, Suruk; Rachtanapun, Pornchai; Chittasupho, Chuda; Ruksiriwanich, Warintorn; Jantrawut, Pensak (November 2020). "Hydroxypropyl Methylcellulose E15: A Hydrophilic Polymer for Fabrication of Orodispersible Film Using Syringe Extrusion 3D Printer". Polymers. 12 (11): 2666. doi:10.3390/polym12112666. ISSN 2073-4360. PMC 7696250. PMID 33198094.

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