Metoprolol Tartrate is a -blocker drug indicated for the treatment of angina, prevention of myocardial infarction, Essential hypertension; It has low bioavailability of about 40% due to hepatic metabolism. The purpose of this research was to improve the bioavailability by preparing a fast dissolving tablet using superdisintegrants method. Because pregastric absorption of drug improves bioavailability, gives rapid onset of action when needed."

Venlafaxine Hydrochloride is an oral antidepressant agent of the Serotonin-Norepinephrine Reuptake Inhibitor class. Venlafaxine Hydrochloride has been studied for the treatment of panic disorder, post-traumatic stress disorder, and the treatment of hot flashes in patients who cannot or do not want to take hormone replacement therapy. The dose of Venlafaxine hydrochloride ranges from 75 to 225 mg three times a day and it undergoes extensive first pass metabolism hence it has only 45% bioavaibility. The short half life of the drug 5 hr indicates the need for modified release dosage form. ...

The aim of this study was to develop a new intra-gastric oating in situ gelling system for controlled delivery of levetiracetam for the treatment of partial onset seizures.High dose of levetiracetam (750 to 1000 mg) is di cult to incorporate in oating tablets but can easily be given in liquid dosage form. Sodium alginate-based in-situ gelling systems were prepared by dissolving various concentrations of sodium alginate in deionized water, to which drug and calcium carbonate were added. A 32 full factorial design was used for optimization. The concentrations of sodium alginate (X1) and calcium...

The purpose of this study was to develop and evaluate a drug delivery system in vitro based on a compression coated tablet containing 5-fluorouracil (5-FU) in core and pectin Hydroxypropyl Methylcellulose (HPMC) mixture in coat layer. The main reason for selecting pectin was its biodegradation in colon by colonic flora. On other hand, high molecular weight HPMC increases mechanical strength of tablet coat around a drug core during its transportation in gastro-intestinal tract. Multiple regression analysis with two way ANOVA revealed that both factors had statistically significant influence...