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Enhancement of ketoconazole dissolution rate by the liquisolid technique Cover

Enhancement of ketoconazole dissolution rate by the liquisolid technique

Open Access
|Jul 2018

Abstract

The study was conducted to enhance the dissolution rate of ketoconazole (KCZ) (a poorly water-soluble drug) using the liquisolid technique. Microcrystalline cellulose, colloidal silica, PEG400 and polyvinyl pyrrolidone (PVP) were employed as a carrier, coating substance, nonvolatile solvent and additive in the KCZ liquisolid compact formulation, respectively. The drug-to-PEG400 and carrier-to-coating ratio variations, PVP concentration and aging effects on the in vitro release behavior were assessed. Differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD) data revealed no alterations in the crystalline form of the drug and the KCZ-excipient interactions within the process. The load factor and the drug release rate were significantly enhanced compared to directly compressed tablets in the presence of the additive. Increasing the PEG400-to-drug ratio in liquid medications enhanced the dissolution rate remarkably. The dissolution profile and hardness of liquisolid compacts were not significantly altered by keeping the tablets at 40 °C and relative humidity of 75 % for 6 months. With the proposed modification of the liquisolid process, it is possible to obtain flowable, compactible liquisolid powders of high-dose poorly-water soluble drugs with an enhanced dissolution rate.

DOI: https://doi.org/10.2478/acph-2018-0025 | Journal eISSN: 1846-9558 | Journal ISSN: 1330-0075
Language: English
Page range: 325 - 336
Accepted on: Mar 15, 2018
Published on: Jul 4, 2018
Published by: Croatian Pharmaceutical Society
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
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© 2018 Mir-Ali Molaei, Karim Osouli-Bostanabad, Khosro Adibkia, Javad Shokri, Solmaz Asnaashari, Yousef Javadzadeh, published by Croatian Pharmaceutical Society
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.