title: Formulation and in vitro-in vivo evaluation of buccoadhesive morphine sulfate tablets.
abstract: Buccoadhesive controlled-release systems for the delivery of morphine sulfate were prepared by compression of hydroxypropyl methylcellulose (HPMC) with carbomer (CP), which served as the bioactive adhesive compound. The release behavior of systems containing 30 mg of morphine sulfate and various amounts of the two polymers was found to be non-Fickian. The adhesion force was significantly affected by the mixing ratio of HPMC and CP in the tablet, and the weakest adhesion force was observed at a ratio of 1:1 (HPMC:CP). Interpolymer complex formation was confirmed between HPMC and CP in acidic medium by turbidity, viscosity, and FT-IR measurements. The amount absorbed (percentage of the drug loaded) of the controlled-release buccoadhesive tablets in six healthy volunteers and was 30 +/- 5%.
authors.affiliation: Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Anlar
authors.forename: Y
authors.initials: Y
authors.lastname: Capan
authors.forename: O
authors.initials: O
authors.lastname: Güven
authors.forename: A
authors.initials: A
authors.lastname: Göğüş
authors.forename: T
authors.initials: T
authors.lastname: Dalkara
authors.forename: A A
authors.initials: AA
authors.lastname: Hincal
mesh_terms: D000042:Absorption; D000180:Acrylic Resins; D000278:Administration, Buccal; D000328:Adult; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D065347:Hypromellose Derivatives; D066298:In Vitro Techniques; D008297:Male; D008747:Methylcellulose / Q000031:analogs & derivatives; D009020:Morphine / Q000008:administration & dosage* / Q000493:pharmacokinetics; D009061:Mouth Mucosa / Q000378:metabolism; D009391:Nephelometry and Turbidimetry; D011108:Polymers; D011145:Polyvinyls; D017550:Spectroscopy, Fourier Transform Infrared; D013607:Tablets; D014783:Viscosity
chemical_list: D000180:Acrylic Resins; D003692:Delayed-Action Preparations; D011108:Polymers; D011145:Polyvinyls; D013607:Tablets; C006912:carboxypolymethylene; D065347:Hypromellose Derivatives; D009020:Morphine; D008747:Methylcellulose