Design and Characterization of Sustained Release Mucoadhesive Microspheres of Tolterodine Tartrate

Suryakanta      Swain; Dusmant      Meher; Chinam   Niranjan   Patra; Jammula      Sruti; Subas   Chandra   Dinda; Muddana Eswara   Bhanoji   Rao

Abstract

The work was aim to design and characterize the sustained release mucoadhesive microspheres of Tolterodine tartrate prepared by non-aqueous solvent evaporation technique using ethyl cellulose based selected mucoadhesive polymers. Selected microspheres formulations of were found to be discrete, spherical and free flowing from the preliminary formulations. The microspheres exhibit good mucoadhesive property in in-vitro wash off test and showed high drug entrapment efficiency. Tolterodine tartrate release from these microspheres was slowed, extended and depended on the concentration of ethyl cellulose and type of mucoadhesive polymer used. In vitro drug release studies suggested that formulation F6c showed consistent drug release for up to 24 h time period. Among all the formulations, F6c containing ethyl cellulose with chitosan showed the reproducible results with best mucoadhesive profile and good surface morphology. The correlation value (r²) indicated that the drug release followed Higuchi model. Analysis of variance (ANOVA) showed significant difference in the release of drug from all formulations at P < 0.05 level. Accelerated stability study of optimized formulation (F6c) up to 3 month showed there was no change in drug content and release characteristics during storage.

Keywords: Sphericity, swelling index, in-vitro wash off test, in vitro drug release, mean dissolution time.

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Current Drug Delivery

Title:Design and Characterization of Sustained Release Mucoadhesive Microspheres of Tolterodine Tartrate

Volume: 10 Issue: 4

Author(s): Suryakanta Swain, Dusmant Meher, Chinam Niranjan Patra, Jammula Sruti, Subas Chandra Dinda and Muddana Eswara Bhanoji Rao

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Keywords: Sphericity, swelling index, in-vitro wash off test, in vitro drug release, mean dissolution time.

Abstract: The work was aim to design and characterize the sustained release mucoadhesive microspheres of Tolterodine tartrate prepared by non-aqueous solvent evaporation technique using ethyl cellulose based selected mucoadhesive polymers. Selected microspheres formulations of were found to be discrete, spherical and free flowing from the preliminary formulations. The microspheres exhibit good mucoadhesive property in in-vitro wash off test and showed high drug entrapment efficiency. Tolterodine tartrate release from these microspheres was slowed, extended and depended on the concentration of ethyl cellulose and type of mucoadhesive polymer used. In vitro drug release studies suggested that formulation F6c showed consistent drug release for up to 24 h time period. Among all the formulations, F6c containing ethyl cellulose with chitosan showed the reproducible results with best mucoadhesive profile and good surface morphology. The correlation value (r²) indicated that the drug release followed Higuchi model. Analysis of variance (ANOVA) showed significant difference in the release of drug from all formulations at P < 0.05 level. Accelerated stability study of optimized formulation (F6c) up to 3 month showed there was no change in drug content and release characteristics during storage.

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Swain Suryakanta, Meher Dusmant, Patra Niranjan Chinam, Sruti Jammula, Dinda Chandra Subas and Rao Bhanoji Muddana Eswara, Design and Characterization of Sustained Release Mucoadhesive Microspheres of Tolterodine Tartrate, Current Drug Delivery 2013; 10 (4) . https://dx.doi.org/10.2174/1567201811310040006

DOI https://dx.doi.org/10.2174/1567201811310040006	Print ISSN 1567-2018
Publisher Name Bentham Science Publisher	Online ISSN 1875-5704

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