Bioadhesive Floating Microsponges of Cinnarizine As Novel Gastroretentive Delivery: Capmul GMO Bioadhesive Coating Versus Acconon MC 8-2 EP/NF with Intrinsic Bioadhesive Property

Overview

Journal Int J Pharm Investig

Specialty Chemistry

Date 2017 Jan 27

PMID 28123987

Authors

Smita Raghuvanshi

Kamla Pathak

Affiliations

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Abstract

Introduction: The study was aimed at the development of low-density gastroretentive bioadhesive microsponges of cinnarizine by two-pronged approach (i) coating with bioadhesive material and (ii) exploration of acconon MC 8-2 EP/NF as bioadhesive raw material for fabrication.

Materials And Methods: Microsponges were prepared by quasi-emulsion solvent diffusion method using 3 factorial design. Capmul GMO was employed for bioadhesive coating. In parallel, potential of acconon for the fabrication of bioadhesive floating microsponges (A8) was assessed.

Results: Formulation with entrapment efficiency = 82.4 ± 3.4%, buoyancy = 82.3 ± 2.5%, and correlation of drug release (CDR) = 88.7% ± 2.9% was selected as optimized formulation (F8) and subjected to bioadhesive coating (BF8). The %CDR for A8 was similar to BF8 (87.2% ± 3.5%). Dynamic bioadhesion test revealed comparable bioadhesivity with BF8. The permeation across gastric mucin displayed 63.16% for BF8 against 56.74% from A8; affirmed the bioadhesivity of both approaches.

Conclusion: The study concluded with the development of novel bioadhesive floating microsponges of cinnarizine employing capmul GMO as bioadhesive coating material and confirmed the viability of acconon MC 8-2EP/NF as bioadhesive raw material for sustained targeted delivery of drug.

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