Posted by admin on Nov 1, 2010 in |
Pelletization methods like solution layering, suspension layering or powder layering and extrusion-spheronization process is the most frequently used method for producing spherical pellets which utilizes a granulating liquid such as water, requires drying steps which is time consuming. Many drugs exhibit stability problem due to the presence of water during processing and residual water during storage. In addition to that pellets produced by these techniques exhibit rapid drug release and require a film coating to provide controlled release properties. Hot melt extrusion and freeze pelletization technique is receiving a great deal of attention as alternative technique over other techniques which need water during processing and drying steps. This article reviews the recent finding in the preparation of pellets by these novel...
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Posted by admin on Nov 1, 2010 in |
Cancer is a genetic disease. The main causes of cancer are alterations of DNA, mutations, damage etc. Any herbs which may be a plant or a part of the plant that are used to maintain the health are called Herbal supplements or Phytomedicines. Plant extracts are generally prepared by boiling the herb in water. The goals of these herbal medicines include prevention and protection against cancer. The traditional plants like Eleutherococcus senticosis, Astralagaus membranaceous, and medicinal mushrooms are used in cancer treatment. The other herbs used in other parts of the world are Valeriana, Garlic, Curcumin etc. These herbal medicines along with benefits also include some adverse effects. This review summarizes the role of some pharmaceutically important herbal medicines used in treating...
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Posted by admin on Oct 1, 2010 in |
The present communication deals with the laboratory studies carried out to determine the antihelmintic activity of Cymbopogon citratus leaves extracts against Pheritima posthuma. Methanolic and aqueous extracts were used as test solutions. Piperazine citrate was used as standard drug and normal saline as a control. Study involved the determination of time of paralysis as well as time of death of worms. The results revealed that methanolic extract of Cymbopogon citratus leaves have better antihelmintic activity than the aqueous extract of the same. Further studies including preparation of emulsion from the oils obtained from the leaves were also carried...
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Posted by admin on Oct 1, 2010 in |
Sphaeranthus indicus Linn (Asteraceae) is a common annual spreading herb found in rice field throughout India. Six crude extracts were prepared from the whole plant Sphaeranthus indicus using different solvents by cold maceration process. The extracts were subjected to screening to detect potential antimicrobial activity against S. aureus, B. substillus, P. Gentamycin and Nystatin as standard by cup plate agar diffusion method. The aim of our present study was to find out the antimicrobial activity of the different extracts of entire part including flower heads of Sphaeranthus indicus. The different extracts such as hexane, chloroform, ethyl acetate, ethanol, methanol and aqueous extract exhibits comparable antimicrobial activity with the...
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Posted by admin on Oct 1, 2010 in |
The mucoadhesive disks of various polymers were fabricated with objective of comparing the mucoadhesive strength and mucoretentability with the isolated DPP. The mucoadhesive polymers used in formulations were sodium carboxy methyl cellulose, carbopol (cp934), hydroxyl propyl methyl cellulose (HPMC K4M), and date palm fruit pulp polysaccharide (DPP). These formulations were characterized for physiochemical parameters, in vitro retention time, in vitro bioadhesive strength, Friability etc. The modified in vitro assembly was used to measure the mucoadhesive strength of disks with fresh goat and porc buccal mucosa as a model tissue. Mucoadhesive study showed that it possess a novel inbuilt significant mucoadhesive property therefore this biomaterial can serve as promising mucoadhesent for formulating the various transmucosal drug delivery...
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