This paper describes a novel and simple method for measuring the physical strength of pharmaceutical pellets prepared by extrusion granulation. Pharmaceutical powders composed of lactose, cornstarch, and microcrystalline cellulose were kneaded with purified water and dry binder (hydroxypropylcellulose), then extruded through a dome-type extrusion granulator. The physical strength of the dried e...

The aim of the present study was to investigate the effect of Ammonio Methacrylate Copolymer Dispersion Type A (Eudragit RL 30 D) and Ammonio Methacrylate Copolymer Dispersion Type B (Eudragit RS 30 D) combination in different weight ratios on the release kinetics of Ambroxol Hydrochloride from coated pellets. Microcrystalline cellulose, lactose, maize starch, hydroxypropyl methylcellulose and ...

The multiparticulate formulation of sodium para aminosalicylate for oral administration was developed by extrusion spheronization technique. Microcrystalline cellulose was used as filler in concentration of 14.4% w/w. Pellets were coated with Eudragit L 30 D-55 using fluidized bed processor. Different weight gains of acrylic polymer were applied onto the pellets and evaluated for in vitro disso...

OBJECTIVES The aim of this study was to investigate the possibility of production of ibuprofen pellets with high amount of rate retarding polymer by aid of PEG400 as plasticizer. MATERIALS AND METHODS Polyethylene glycol (PEG400) in concentrations of 1, 3 or 5% w/w with respect to Eudragit RL was used in production of pellets containing 60% ibuprofen and 40% excipient (2% polyvinylpyrrolidone...

Pellets containing theophylline as a model drug and microcrystalline cellulose, in a ratio of 6:4, were prepared by the extrusion-spheronization method. The pellets were coated with Eudragit RS aqueous dispersions, containing various amounts of pectin-chitosan complex and different coating mass gains, using a fluidized-bed apparatus. Twelve formulations were developed, which differed in two fac...

Ion exchange resins have versatile properties as drug delivery vehicles and have been extensively studied in the development of novel drug delivery systems1. Cation exchange resins containing strong sulfonic acid group form a strong bond with cationic drugs and elution of drug from resinates is slower2. Formulations based on ion exchange resins are successfully marketed viz Pennkinetic system b...

We present a novel but simple enteric coated sphere formulation containing probiotic bacteria (Lactobacillus casei). Oral delivery of live bacterial cells (LBC) requires live cells to survive firstly manufacturing processes and secondly GI microbicidal defenses including gastric acid. We incorporated live L. casei directly in the granulation liquid, followed by granulation, extrusion, spheroniz...

BACKGROUND Implantation of testosterone pellets under the lateral abdominal wall skin is an old but popular and effective form of androgen replacement therapy. Extrusion of one or more pellets remains the most frequent adverse event. OBJECTIVE To determine whether an alternative implantation site (hip) and/or track geometry (two vs. four tracks) would reduce extrusion rates compared with the ...