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Classification of crude drugs

Because of the wide distribution of crude drugs, it is necessary to classify
them in a definite sequence for deep study and understanding.
There are different systems for classification but each of them has its own
merits and pitfalls.
Different ways of crude drugs classification include:

I. Alphabetical
II. Morphological
III. Chemical
IV. Taxonomical
V. Pharmacological
VI. Chemo-taxonomical

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