Shellac is an important coating material for food products. Since the introduction of aqueous ammoniacal solutions it also regained importance for pharmaceutical applications. Because of the comparatively high dissolution pH of this material, further additives are required if shellac is used as enteric coating material. However, this dissolution behaviour of shellac may be of interest for susta...

OBJECTIVE To evaluate the cost-effectiveness of a new extended-release (XL) formulation of oxybutynin relative to tolterodine immediate release (IR), currently the most prescribed treatment for overactive bladder in the UK. METHODS A state-transition model was developed to compare outcomes over 1 year. Effectiveness and treatment persistence data were derived from the OBJECT (Overactive Bladd...

An extended release form of the cholinesterase inhibitor (ChEI) drug galantamine (galantamine-ER) was developed, chiefly to increase adherence to medication regimes in patients with mild-to-moderate Alzheimer's disease (AD). Except for predicted differences in (C(max)) and t(max), comparable doses of once daily galantamine-ER and regular, immediate release galantamine, (galantamine-IR), are pha...

In order to develop a kind of APAP double-release pellet capsules, which was prepared with the manual filling method, immediate and sustained release pellets certain proportion were by fluidized bed coating extrusion spheroidization process, respectively. It founded that both immediate-release sustained-release had smooth round surfaces. The particle size distribution ranged evenly from 16 35 m...

background: the aim of this study was to directly compare efficacy of atomoxetine and methylphenidate in treatment of children and adolescents 6- 18 years.   methods: all published, randomized, open label or double blind trials, comparing the efficacy of methylphenidate with atomoxetine in treatment of children diagnosed with adhd, using dsm-iv criteria were included in this study; adhd rating ...

BACKGROUND Long-acting opioid formulations are advocated for maintaining pain control in chronic cancer pain. OROS(R) hydromorphone is a sustained-release formulation of hydromorphone that requires dosing once daily to maintain therapeutic concentrations. The objective of this study was to demonstrate the clinical equivalence of immediate-release and sustained-release formulations of hydromorph...

The objective of the study was to compare pharmacokinetic and pharmacodynamic parameters of gliclazide after administration of immediate (IR) and modified release (MR) tablets. The experiment included rats with both normoglyceamia and streptozocin (STZ)-induced hyperglyceamia. Several MR formulations were designed and in vitro drug release profile was assessed by a dissolution test. For the fur...

Objective To compare the oral abuse potential of hydrocodone extended-release (ER) tablet developed with CIMA ® Abuse-Deterrence Technology with that of hydrocodone immediate release (IR). Design Randomized, double-blind, placebo-controlled, crossover study. Setting and Patients One study site in the United States; adult nondependent, recreational opioid users. Methods After confirming th...

The dual release system is used to achieve both quick and sustained release effect from dosage form. The dual release action achieve by using core compressed tablet, bi-layer or multi layer tablet, IR and SR granules containing matrix tablet and capsules. Some researcher formulated dual release system by incorporating disintegrants for immediate release part and different polymers for sustained...

The purpose of the present research was to produce a quick/slow biphasic delivery system for aceclofenac. A dual component tablet made of a sustained release tabletted core and an immediate release tabletted coat was prepared by direct compression. Both the core and the coat contained a model drug aceclofenac. The sustained release effect was achieved with polymers hydroxypropyl methylcellulose...