Posted by admin on Apr 1, 2012 in |
Solubility is an important parameter to achieve desired concentration of drug in systemic circulation for pharmacological response to be shown. Among all newly discovered chemical entities most of the drugs are lipophillic and fail to reach market due to their poor water solubility. The solubility behavior remains one of the most challenging aspect informational development. Hence various techniques are used for the improvement of solubility of poorly water soluble drugs which include micronization, chemical modification, pH adjustment, solid dispersion, complexation, co-solvency micellar solubilization, hydrotrophy etc. Of all these approaches solid dispersion have attracted tremendous interest as an efficient means of improving the dissolution rate and hence the bioavailability to arrange of hydrophobic drugs. This article reviews the various preparation techniques and types of solid dispersion based on molecular arrangement. Finally some of the practical aspects have also been considered for the preparation of...
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Posted by admin on Mar 1, 2012 in |
The plant kingdom plays a major role in the life of human beings and animals. A great deal of Pharmacological research has considerably improved the quality of herbal drugs in cancer treatment. Phytochemical tests in Pharmacognosy, structure elucidation in medicinal chemistry and various screening procedures in pharmacology helped to boost immune system in the body against cancer as breast cancer is the most serious problem in Oncology and fifth most leading cause of mortality in developed and also developing countries. Scientists have contributed number of years to investigate a remedy with no side effects and interested in finding a potent phytotherapeutic agent from herbs for this disease. They performed several research works by taking the active principles of many herbs and developed various herbal formulations which inhibit growth and spread of breast cancer on the metastatic phase stage IV. Some important ethanomedicinal plants (indigenous system of medicine) evidenced for breast cancer by scientific study have been discussed...
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Posted by admin on Mar 1, 2012 in |
Planterosomes, term “PLANTERO” means plant while “SOME” means cell-like. A novel emerging technique applied to phytopharmaceutical for the enhancement of bioavailability of herbal extract for medicinal applications. Since the two major limiting factors for molecules to pass the biological membrane for their absorption in the blood stream mainly includes lipid solubility and molecular sizes. There are many plant extracts having excellent bioactivity in vitro but low or less in vivo because of their poor lipid solubility and improper size of the molecule or both which result in poor absorption and bioavailability of constituents from plant extract and are destroyed in the gastric fluids when taken orally. Planterosomes are recent advanced forms of herbal formulations that have enhanced absorption rate, producing better bioavailability than conventional herbal extracts. Since they have improved pharmacological and pharmacokinetic parameters, they can be used in the treatment of the acute and chronic liver disease. Planterosomes are prepared by non conventional methods. Planterosomes absorption in GIT is greater resulting in increased plasma level than individual component....
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Posted by admin on Mar 1, 2012 in |
Oral drug delivery remains the preferred route of drug delivery. Novel technologies with improved performance, patient compliance, and enhanced quality have emerged in the recent past. The fast dissolving drug delivery system started gaining popularity and acceptance as a new drug delivery system because they are easy to administer and lead to better patient compliance. Fast dissolving drug delivery system can be obtained by the various techniques i.e. direct compression, tablet molding, freeze drying, spray drying nanonization. Oral fast-dissolving tablets, are an examples of a few existing technologieswith the potential to accommodate various physicochemical, pharmacokinetic and pharmacodynamic characteristic of...
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Posted by admin on Mar 1, 2012 in |
The benefits of Probiotics have been recognized and explored for over a century. Probiotics consist of bacteria or yeasts and can be considered functional foods that can re-colonize and restore the microflora symbiosis of the intestinal tract. Several health benefits associated with the Probiotics in various diseases includes Inflammatory Bowel Disease (IBD), Colon Cancer, Rotavirus-associated diarhoea, H.Pylori infection and Liver disease etc. Prebiotics are “non-digestible food ingredients that beneficially affect the host by selectively stimulating the growth and/or activity of one or a limited number of bacteria in the colon”. Dietary modulation of the gut microflora by Prebiotics is designed to improve health by stimulating numbers and/or activities of Probiotics like Bifidobacteria and Lactobacill.This review also discuss the results of randomized controlled clinical trials that used Prebiotics to treat IBD, Hypertension, Colon Cancer, Diabetes and Hepatic Encephalopathy as well as their potential applications. The combination of Probiotics and Prebiotics is known as Synbiotics. Recently Synbiotics have been proposed as a new therapeutic option in Pediatric surgery, Digestive organ surgery,...
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