Effect of Dried Rhizomes of Doronicum Hookeri on the Cognitive Deficit and the Expression of Nicotine Withdrawl Symptoms in Rats

Abstract

newlineMedicinal plant materials are categorized according to sensory, microscopical and newlinemacroscopical characteristics. Taking into consideration the variations in sources of newlinecrude drug and their chemical nature, they are standardized by using different newlinetechniques including the methods of estimation of chief active constituents. newlineOrganoleptic evaluation of drugs refers to the evaluation of drugs by colour, odour, newlinesize, shape, taste and special features including touch and texture etc. They are of newlineprimary importance before any further testing can be carried out. Organoleptic newlineevaluations can be done by means of organs of sense which includes the above newlineparameters and thereby define some specific characteristics of the material which can newlinebe considered as a first step towards establishment of identity and degree of purity