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Published on:9th Jan, 2015
Indian Journal of Pharmaceutical Education and Research, 2015; 49(2):158-167
Pharmaceutical Research | doi:10.5530/ijper.49.2.13

Controlled Release Ion Sensitive Floating Oral In Situ Gel of a Prokinetic Drug Using Gellan Gum

Authors and affiliation (s):

Monica Raghavendra Prasad Rao*, Swapnil Uttamrao Shelar

Department of Pharmaceutics, AISSMS College of Pharmacy, Kennedy Road, Near R.T.O. Pune-411001, Maharashtra, India.


There are various approaches commonly used for gastric retention, one of which is raft forming system. Floating oral in situ gel is a type of raft forming system. The present work concerns with the formulation, evaluation and optimization of floating oral in situ gel of Itopride Hydrochloride for controlled release. Gellan gum has been used as a gel forming polymer and calcium carbonate as cross linking agent and Ca2+ ion source, and HPMC K100M as release retardant. The floating oral in situ gel undergoes gelation by ion sensitive mechanism. In this formulation 32 factorial designs was performed and the effect of variation in concentration of gellan gum and HPMC K100M on drug release at 1 h, 6 h, and viscosity was evaluated. The gel was evaluated for other parameters like floating lag time, floating duration, gel strength, density, pH, in vitro drug release, drug content, and in vitro gelling capacity. The results of 32 full factorial design revealed that the concentration of gellan gum and of HPMC K100M significantly affected the dependent variables i.e. drug release at 1 h, at 6 h, and viscosity. A controlled release profile was observed for these formulations. The drug release mechanism was found to follow Korsmeyer-Peppas model. In vivo studies revealed higher Tmax of gel compared to plain drug which is suggestive of slower absorption. However the AUC0-12 h was found to be nearly 90% higher than plain drug.

Key words: in situ gel, CaCO3, Gellan gum, Foating drug delivery system, Ion Sensitive, Prokinetic.




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The Official Journal of Association of Pharmaceutical Teachers of India (APTI)
(Registered under Registration of Societies Act XXI of 1860 No. 122 of 1966-1967, Lucknow)

Indian Journal of Pharmaceutical Education and Research (IJPER) [ISSN-0019-5464] is the official journal of Association of Pharmaceutical Teachers of India (APTI) and is being published since 1967.


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