Page 219 - PG 101-Course notes مذكرة النظري 24-25 with spec

Medicinal plants (PG 101) Level 1 Clinical Pharmacy-PharmD

Classification of Crude Drugs

1. Alphabetical: arrangement system in which the plants are arranged according to

their, either Latin or English names.

2. Taxonomic: The drugs are arranged according to the taxonomical classification

of their plants from which they are obtained as in phyla, orders, families, genera,

and species.

3. Morphological: The drugs are grouped into classes according to the medicinally

used organ of the plant (the part used of the plant), e.g., leaves, herbs, seeds,

fruits etc.

4. Pharmacological: The drugs are grouped according to the pharmacological

action of their most important active constituents or therapeutic use e.g., laxative

drugs, cardio-active drugs, antispasmodic drugs, etc.

5. Chemical: The drugs are divided into groups according to their most important

active constituents e.g., drugs containing alkaloids, drugs containing

glycosides, drugs containing volatile oils, etc.

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