Evaluation of Ciprofloxacin Floating-Bioadhesive Tablet Formulated with Okra Gum as Multifunctional Polymer
*Alalor CA1, Uhumwangho MU2, Iwuagwu MA2
1Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Delta State University, Abraka, 320001, Nigeria2Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University of Benin, Benin City, 300001, Nigeria
Received: 20-Jan-2018 , Accepted: 26-Mar-2018
Keywords: Polymer, Okra gum, Ciprofloxacin, Floating, Bioadhesive, Gastroretentive drug delivery system
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How to Cite this Article
Alalor CA, Uhumwangho MU, Iwuagwu MA. Evaluation of Ciprofloxacin Floating-Bioadhesive Tablet Formulated with Okra Gum as Multifunctional Polymer.UKJPB. 2018; 6(2): 1-11.
Floating drug delivery systems and bioadhesive drug delivery systems are gastroretentive systems for increasing gastric residence time to obtain improved drug bioavailability. This study was to evaluate the floating and bioadhesive characteristics of Ciprofloxacin tablets formulated with Abelmoschus esculentus gum (okra gum).Okra gum was extracted and granules were prepared using the extracted Okra gum as well as sodium alginate and HPMC at concentrations of 2.5, 5 and 10 % w/w. Ciprofloxacin floating bioadhesive (CFB) tablets were evaluated for hardness, friability, in vitro buoyancy test, ex vivo bioadhesion test and drug release profiles. The floating lag time (FLT) and total floating time (TFT) for CFB tablets formulated with 10% w/w okra gum were 5.7 minutes and 8 hours respectively while the bioadhesive force was 1.324 N. Formulations of ciprofloxacin tablets containing admixtures of okra gum and sodium alginate or HPMC resulted in significant decrease (p < 0.05) in the floating lag times (≤ 3.1 minutes) and significant increase (p < 0.05) in total floating times (> 12 h). The bioadhesive force for CFB tablets containing admixtures of okra gum and sodium alginate or HPMC gave higher values in the range of 1.766 – 2.207 N. The in vitro release profiles for CFB tablets formulated with okra gum alone did not show sustained release below 10 % w/w. Batches FB10 and FB11 containing admixtures showed sustained release with maximum release of 86% at maximum time of 9 h. The dissolution profiles of tablets from batches F10 and F11 compared favourably with the profile for the commercial brand of floating ciprofloxacin tablet, MF. From the study Okra gum has shown to possess good floating and bioadhesive properties and may be utilized in the formulation gastro-retentive dosage form of ciprofloxacin which can possibly be harnessed as a targeted site-specific delivery system in the eradication of Helicobacter pylori in gastric ulcer disease as well as in the treatment of Salmonella typhi induced enteric fever.