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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-9827
Vol. 12, No. 3, 2013, pp. 299-304
Bioline Code: pr13045
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 12, No. 3, 2013, pp. 299-304

 en Formulation and Evaluation of Spray-Dried Esomeprazole Magnesium Microspheres
Jain, Achin; Teja, MN Ravi; Pariyani, Laxman; Balamuralidhara, V & Gupta, N Vishal


Purpose: To prepare and evaluate in vitro mucoadhesive esomeprazole magnesium microspheres for the treatment of Zollinger Ellison syndrome.
Methods: The microspheres were prepared by spray drying technique using locust bean and xanthan gums as polymers. Esomeprazole magnesium was entrapped in the microspheres at various polymer/cross-linking ratios. Glutaraldehyde was used to cross-link the gums. The microspheres were evaluated for their micromeritic properties and in vitro release. as well as by Fourier transform infrared (FTIR), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM).
Results: The microspheres were discrete, spherical, and showed good drug entrapment efficiency (60.5 - 92.3 %). FTIR and DSC results indicate that the drug was compatible with the polymers used. Amongst all the formulations, F6 (drug:locust bean gum:xanthan gum, 1:2:2) showed the most suitable sustained release properties with 99.8 % of drug released at the end of 12 h.
Conclusion: Microspheres prepared using locust bean and xanthan gums can be used as a sustained release delivery system for esomeprazole magnesium.

Spray drying; Microspheres; Esomeprazole magnesium; Sustained release

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