sources of crude drugs of natural origin and their classification
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The branch of pharmaceutical sciences that deals with the study of crude drugs from natural sources of origin like plants, animals and minerals is defined as Pharmacognosy.
DERIVATION
The word “Pharmacognosy”has been derived from two different Latin terminologies “Pharmakon” meaning “natural drugs” and “Gignosca” meaning “to have knowledge of”.
CLASSIFICATION OF CRUDE DRUGS IN PHARMACOGNOSY
The Pharmacognostic classification of the crude drugs is based on different grounds such as:
On the basis of ORIGIN
Drugs from plant origin
Herbs (Tulsi, Mint, Opium, Tobacco, Ashwagandha)
Shrubs (Tea, Coffee, Liquorice)
Trees (Neem, Cinchona officinalis, Ashoka bark, Arjuna bark)
Creepers (solanum xanthocarpum, ecinopus ecinatus)
Climbers (Eicchornia, Cortifolia)
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