title: An innovative floating gastro retentive dosage system: formulation and in vitro evaluation.
abstract: Over the years, different formulation technologies intended for gastro retentive dosage delivery were investigated and patented. The aim of this study was to develop an innovative floating gastro retentive dosage form (GRDF). The developed technology induces a low-density dosage form containing high active pharmaceutical ingredient (API) concentration by using a hydrophobic dusty powder excipient under specific conditions. The new dosage form was obtained by state of the art wet granulation manufacturing process. An experimental design using a discrete variable and four mixture variables was conducted in order to optimize API concentration and buoyancy of the new dosage form. An apparatus was developed to measure the apparent density of floating tablet. The GRDF was characterized for apparent density, buoyancy, porosity and dissolution using in vitro experimentations.
authors.affiliation: Université de la Méditerranée, EA 4263, Faculté de Pharmacie, Marseille Laboratoire de Pharmacie galénique, 27, Boulevard Jean Moulin, 13385 Marseille Cedex 5, France.
authors.forename: C
authors.initials: C
authors.lastname: Sauzet
authors.forename: M
authors.initials: M
authors.lastname: Claeys-Bruno
authors.forename: M
authors.initials: M
authors.lastname: Nicolas
authors.forename: J
authors.initials: J
authors.lastname: Kister
authors.forename: P
authors.initials: P
authors.lastname: Piccerelle
authors.forename: P
authors.initials: P
authors.lastname: Prinderre
mesh_terms: D000284:Administration, Oral; D002626:Chemistry, Pharmaceutical / Q000379:methods; D005079:Excipients / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D004364:Pharmaceutical Preparations / Q000008:administration & dosage*; D016062:Porosity; D012995:Solubility; D013607:Tablets; D013678:Technology, Pharmaceutical / Q000379:methods*
chemical_list: D005079:Excipients; D004364:Pharmaceutical Preparations; D013607:Tablets