ABSTRACT
INTRODUCTION: In the present work, the method to extract, isolate, and characterize orange peel pectin using soxhlation, and thereafter, the use of this polymer-polymer in the formulation of fast dispersable and slow-releasing tablet has been studied. Thereafter, the evaluation and comparison of fast dispersible/slow-releasing tablets using orange peel pectin versus prepared using sodium starch glycolate (SSG) were carried out. MATERIALS AND METHODS: In the present investigation, extraction methodology was employed for isolation of pectin from orange peels. Four different batches with each polymer were prepared with varying concentration of superdisintegrant and bulking agent using diclofenac sodium as model drug. Diclofenac sodium stands as easily available, cheap, and good candidate to demonstrate disintegrant property. The formulation involved wet granulation method for the preparation of tablets of each batch. The tablets were evaluated for hardness, friability, thickness, wetting time, deaggregation time, and in vitro release characteristic data. RESULTS: It was observed that parameters for batch O2* were comparable with that of synthetic superdisintegrant. This batch gave around 92.12% drug release in period of 90 min. The study showed that orange peel pectin could be a potential candidate for formulation of orodispersible dosage forms in competence to SSG, which is established superdisintegrant. CONCLUSION: The results led to the conclusion that the use of natural polymers in formulation of pharmaceutical dosage form can be put into practice on industrial scale meeting the similar requirements as done by synthetic polymers. SUMMARY: The present work aims to demonstrate and establish the use of naturally derived polymer, i.e., orange peel pectin as a superdisintegrant. The extraction methodology has been discussed followed by comparative analysis with a synthetic polymer. Abbreviations used: O1-O2: Batches Containing Orange peel pectin, S1-S2: Batches containing SSG, SSG: Sodium starch glycolate, NDDS: Novel drug delivery system.
ABSTRACT
AIM: Present investigation was carried out with aim to synthesize chitosan-alginate polyelectrolyte complex, their characterization and then formulation of phenytoin sodium fast dispersible tablet using polyelectrolyte as active excipient. METHODS: In this study, polyelectrolyte complex was formed by ionic cross-linking of polymers. Dried complex was evaluated for micromeritic properties and flow behaviour. Tablets were prepared for six batches based on different proportion of complex viz 5%, 10%, 20%, 30%, 40%, 50% and 60%. Tablets were evaluated for hardness, friability, thickness, in vitro disintegration time, in vitro dissolution study and stability study. RESULTS: Results of micromeritic study and flow behaviour predict that complex can be used as an efficient excipient. Hardness, friability, thickness all were in acceptable limit. Release studies were showed that tablets release drug up to 99.97%. Batch showed .sec of invitro disintegration time. Stability study easily predicted that formulation characteristics dose not changed during the whole period of study. CONCLUSIONS: From the findings it is concluded that chitosan-alginate polyelectrolyte complex is efficient excipient for fast dispersible formulation especially required in case of epilepsy and chronic diseases.
Subject(s)
Alginates/chemistry , Chitosan/chemistry , Drug Carriers/chemistry , Excipients/chemistry , Polyamines/chemistry , Tablets/chemistry , Chemistry, Pharmaceutical , PolyelectrolytesABSTRACT
Fast-dissolving drug delivery systems have been developed as an alternative to conventional dosage form as an oral means of drug delivery in case of chronic conditions. Now a day's fast dissolving films are preferred over conventional tablets and capsules for masking the taste of bitter drugs to increase the patient compliance. Fast dissolving films consist of a very thin oral strip which dissolves in less than one minute when placed on the tongue. Dissolvable oral thin films are in the market since past few years in the form of breath strips and are widely accepted by consumers for delivering vitamins, vaccines and other drug products. The various manufacturing techniques for the preparation of films have also been detailed in the review. The present review details most of the patents on such fast dissolving films in recent years. A brief study has been made on various parameters which are used to evaluate such films. In case of chronic disorders these fast dissolving films are better for delivering drugs and obtaining faster therapeutic blood levels and superior in comparison to other oral conventional dosage forms.
