title: Sustained release enteric coated tablets of pantoprazole: formulation, in vitro and in vivo evaluation.
abstract: In this study, an attempt was made to deliver pantoprazole in a sustained manner using delayed release tablets. The tablets were prepared by the wet granulation method using HPMC, cassava starch and polyvinyl pyrrolidine as polymers, Avicel PH 102 (MCC) as filler and potato starch as binder. The prepared tablets were evaluated for hardness, mass variation, friability and drug content uniformity, and the results were found to comply with official standards. The prepared tablets were coated using an enteric coating polymer such as cellulose acetate phthalate, Eudragit L100 and drug coat L100 by the dip coating method. The in vitro release was studied using pH 1.2 acidic buffer and pH 6.8 phosphate buffer and the study revealed that the prepared tablets were able to sustain drug release into the intestine. The anti-ulcer activity was evaluated by a water immersion stress induced ulcer model. The enteric coated pantoprazole tablets significantly reduced ulcer formation.
authors.affiliation: Department of Pharmaceutics Dayananda Sagar College of Pharmacy Kumaraswamy Layout, Bangalore, India.
authors.forename: Barnabas
authors.initials: B
authors.lastname: Wilson
authors.forename: Patel Pritesh
authors.initials: PP
authors.lastname: Babubhai
authors.forename: Moothandassery Sankarakutty
authors.initials: MS
authors.lastname: Sajeev
authors.forename: Josephine Leno
authors.initials: JL
authors.lastname: Jenita
authors.forename: S R Brahmani
authors.initials: SR
authors.lastname: Priyadarshini
mesh_terms: D053799:2-Pyridinylmethylsulfinylbenzimidazoles / Q000008:administration & dosage* / Q000737:chemistry*; D000818:Animals; D000897:Anti-Ulcer Agents / Q000737:chemistry / Q000494:pharmacology; D002482:Cellulose / Q000031:analogs & derivatives / Q000737:chemistry; D002626:Chemistry, Pharmaceutical / Q000379:methods; D003692:Delayed-Action Preparations; D005079:Excipients / Q000737:chemistry; D005260:Female; D006244:Hardness; D006863:Hydrogen-Ion Concentration; D007785:Lactose / Q000031:analogs & derivatives / Q000737:chemistry; D008297:Male; D008747:Methylcellulose / Q000031:analogs & derivatives / Q000737:chemistry; D000077402:Pantoprazole; D011108:Polymers / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D051381:Rats; D017208:Rats, Wistar; D013213:Starch / Q000737:chemistry; D013608:Tablets, Enteric-Coated; D014456:Ulcer / Q000188:drug therapy
chemical_list: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000897:Anti-Ulcer Agents; D003692:Delayed-Action Preparations; D005079:Excipients; D011108:Polymers; D011109:Polymethacrylic Acids; D013608:Tablets, Enteric-Coated; C509290:hydroxypropylmethylcellulose-lactose matrix; C038300:methylmethacrylate-methacrylic acid copolymer; D002482:Cellulose; C011708:cellulose acetate phthalate; D008747:Methylcellulose; D013213:Starch; D000077402:Pantoprazole; D007785:Lactose; C109691:microcrystalline cellulose