Posted by admin on Dec 1, 2011 in |
Among the various methods of drying, this article has mentioned only one most important method, “Freeze drying”. This method is mainly used for the drying of thermo labile materials. This method works on the principle of sublimation. This method is divided into 3 steps for its better understanding; these are Freezing, Primary drying, and secondary drying. There are many advantages and disadvantages of this method, but still this is the most useful drying method...
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Posted by admin on Dec 1, 2011 in |
Depression is a heterogenous mood disorder that has been classified and treated in variety of ways. Although a number of synthetic drugs are being used as standard treatment for clinically depressed patient, they have adverse effects that can compromise the therapeutic treatment .Thus, it is worthwhile to look for antidepressant from plants with proven advantage and favorable benefit to risk ratio. A number of medicinal plants and medicine derived from these plants have shown antidepressant properties by virtue of combined effect of their medicinal constituents. The causes of depression are decreased brain levels of monoamines like noradrenaline, dopamine and serotonin. Therefore, drugs restoring the reduced levels of these monoamines in the brain either by inhibiting monoamine oxidase or by inhibiting reuptake of these neurotransmitters might be fruitful in the treatment of depression. The present review is focused on the medicinal plants and plants based formulations having antidepressant activity in animal studies and in...
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Posted by admin on Dec 1, 2011 in |
Tablet that disintegrate rapidly in the mouth are convenient for patient who have difficulty in swallowing conventional dosages forms. Although various formulation technologies like Zydis Technology, Durasolve Technology, Orasolve Technology, Flash Dose Technology, Wow Tab Technology, Flash Tab Technology, Quicksolv Technology, Lyos Technology, Fast Melt Technology and Zip-lets Technology are used. This review highlights numerous techniques to explain the phenomenon of preparing mouth disintegration tablets like Freeze Drying, Molding, Sublimation, Spray Drying, Direct compression, Wet granulation and Dry...
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Posted by admin on Nov 1, 2011 in |
Biosynthesis of nanoparticles is reviewed in detail in this study. Comparison of different synthesis methods, namely physical, chemical and green methods giving emphasis to biological synthesis is documented here. This study also details limitations of the present techniques and envisages the future scope of nanoparticle biosynthesis. Important applications of nanoparticles are also discussed briefly in the present...
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Posted by admin on Nov 1, 2011 in |
The desire of improved palatability in orally administered products has prompted the development of numerous formulations with improved performance and acceptability. Orally disintegrating tablets are an emerging trend in novel drug delivery system and have received ever-increasing demand during the last few decades. The field has become a rapidly growing area in the pharmaceutical industry and gaining popularity due to ease of administration and better patient compliance especially for geriatric and pediatric patients. ODTs are solid unit dosage forms, which disintegrates or dissolves rapidly in the mouth without chewing and water. This type of property in dosage form can be attained by addition of different excipients, from which disintegrant is the key adjuvant. In recent years, several newer agents have been developed known as superdisintegrants. Diverse categories of superdisintegrants such as synthetic, semi-synthetic, natural and co-processed blends etc. have been employed to develop effectual mouth dissolving tablets and to overcome the limitations of conventional tablet dosage forms. The objective of the present article is to highlight the various kinds...
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