INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 959 R I. FLOURISHING AND ITS OBLIGATIONS . . . . . . . . . . . . . . . . . . . . . . 960 R II. HOW PROPERTY FILLS THE GAP . . . . . . . . . . . . . . . . . . . . . . . . . . 963 R III. CORE AND PERIPHERY IN PROPERTY LAW . . . . . . . . . . . . . . . . . . 971 R A. The Morality of Prope...

PURPOSE To investigate the interpolymer complexation between Carbopol 934P (CP) and various grades of polyvinylpyrrolidone (PVP) (K90, K32, C15, and VA/S-630). METHODS Amount of fresh and dried CP-PVP complexes, water retaining capacity, apparent density, pH, conductivity, FTIR, swelling and adhesion strength were studied. RESULTS Interpolymer complexation occurred between CP and all the PV...

Purpose: The objective of this study was to prepare Propranolol Hydrochloride controlled release matrix tablets and to investigate the effect of the polymer blends and the polymer concentration on drug release. Method: Propranolol Hydrochloride controlled release matrix tablets were prepared by direct compression technique. Hydroxypropylmethylcellulose K15M (HPMC K15M) and Carbopol 934P were us...

the influence of various polymers on the release rate of lithium carbonate from matrix-type tablets was investigated in an attempt to formulate a sustained release solid dosage form. for this purpose, tablets containing 450 mg of lithium carbonate along with various amounts of carbopol 934p, 971p, 974p, pemulen and eudragit rlpo as retarding agents and inactive ingredients (e.g. pvp, avicel or ...

significant effect on bioadhesive strength and in vitro drug release. It was found that carbopol gives higher bioadhesive strength than HPC. Comparatively HPC controls the drug release greater than carbopol. The optimized formulation follows non-Fickian release mechanism. The FT-IR and DTA studies indicate no physico-chemical interaction. Stability studies revealed that optimized formulation wa...

A series of mucoadhesive disks with celecoxib as a model drug of very low aqueous solubility were prepared and characterized. Two polymers of polyaspartamide type, poly[alpha,beta-(N-2-hydroxyethyl-DL-aspartamide)] (PHEA, 1) and its thiolated analogue poly[alpha,beta-(N-2-hydroxyethyl-DL-aspartamide)]-poly[alpha,beta-(N-2-thioethyl-DL-aspartamide)] copolymer (PHTA, 2a,b), and two commercially a...

PATRIK BARCELOS-SILVA, LEANDRO LOURENÇO DUMAS & ANA MARIA PES 1Instituto Nacional de Pesquisas da Amazônia (INPA), Coordenação de Pesquisas em Biodiversidade (Campus II), Av. André Araujo, 2936, B. Petrópolis, Caixa Postal 2223, 69.080-971, Manaus, AM, Brazil 2Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Cidade Universitária, 21941...

The influence of various polymers on the release rate of lithium carbonate from matrix-type tablets was investigated in an attempt to formulate a sustained release solid dosage form. For this purpose, tablets containing 450 mg of lithium carbonate along with various amounts of Carbopol 934P, 971P, 974P, Pemulen and Eudragit RLPO as retarding agents and inactive ingredients (e.g. PVP, Avicel or ...

Rev Esp Cardiol 2003;56(10):971-7 97