IN VITRO AND IN VIVO EVALUATION OF FLOATING GASTRORETENTIVE DRUG DELIVERY SYSTEM OF CIMETIDINE USING HARD ALGINATE CAPSULES

Ririyen Dessy N Siahaan; Hakim Bangun; Sumaiyah Sumaiyah

doi:10.22159/ajpcr.2018.v11i6.24731

Authors

Ririyen Dessy N Siahaan Department of Pharmaceutical Technology, Faculty of Pharmacy, Nanomedicine Centre, University of Sumatera Utara, Jl. Tri Dharma No. 5, Kampus USU, Medan, Indonesia.
Hakim Bangun Department of Pharmaceutical Technology, Faculty of Pharmacy, Nanomedicine Centre, University of Sumatera Utara, Jl. Tri Dharma No. 5, Kampus USU, Medan, Indonesia.
Sumaiyah Sumaiyah Department of Pharmaceutical Technology, Faculty of Pharmacy, Nanomedicine Centre, University of Sumatera Utara, Jl. Tri Dharma No. 5, Kampus USU, Medan, Indonesia.

DOI:

https://doi.org/10.22159/ajpcr.2018.v11i6.24731

Keywords:

Hard alginate capsules, Gastroretentive, Cimetidine, Release, Bioavailability, Antiulcer effect

Abstract

Objective: The objective of this study was to evaluate in vitro and in vivo of gastroretentive drug delivery system of cimetidine using hard alginate capsules.

Methods: Drug release study was tested to various hard alginate capsules containing 200 mg cimetidine with paddle method dissolution apparatus in artificial gastric fluid pH 1.2. Concentrations of cimetidine were measured using ultraviolet spectrophotometer at 218.4 nm wavelength. The product that fulfilled the sustained release profile was evaluated for bioavailability using male rabbits at dose 9.3 mg/kg orally, and the antiulcer studies were evaluated by HCl-induced ulcer method at cimetidine dose 18 mg/kg once a day orally. Gastric lesions were evaluated by macroscopic and microscopic observations.

Results: The results of drug release test showed that hard alginate capsule made from sodium alginate 500â€“600 cP gave sustained release profile of cimetidine for 12 h. In vivo bioavailability studies showed that cimetidine given with hard alginate capsules gave higher of Cmax, Tmax, and area under the curve of cimetidine compared to cimetidine that given with conventional hard gelatin capsules. The antiulcer studies showed that the healing effect of cimetidine that given with hard alginate capsules was faster than cimetidine given in suspension form. Cimetidine that given with hard alginate capsules macroscopically showed no gastric lesion and histopathologically also showed normal gastric mucosa of rats after 4 days treatment. However, cimetidine given in suspension form showed of 0.036Â±0.024 ulcer index and microscopically there was still erosion of gastric mucosa of rats after 4 days treatment.

Conclusion: Floating gastroretentive of cimetidine using hard alginate capsules give a sustained release of cimetidine with better bioavailability and antiulcer effect of cimetidine.

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