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Chemical Classification

  • This classification is based on the active chemical constituents present in the drug.

  • It is widely used in pharmaceutical research.

Categories and Examples

Category

Examples

Alkaloids

Morphine (Opium), Quinine (Cinchona), Atropine (Belladonna)

Glycosides

Digoxin (Digitalis), Sennosides (Senna)

Tannins

Catechu, Tea

Flavonoids

Rutin (Citrus fruits), Quercetin (Onion, Green tea)

Essential Oils

Eucalyptus oil, Clove oil

Resins

Cannabis, Asafoetida

Advantages

  • Useful for drug formulation and standardization.

  • Helps in isolating medicinal compounds for synthetic drug development.

Disadvantages of Chemical Classification

  • Requires chemical knowledge to classify drugs.

  • Some drugs contain multiple chemical constituents, making classification complex.


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