Sources of Drugs

SOURCES OF DRUGS

Drugs are obtained from various sources like plants, animals, microbial, mineral, synthetic and semi synthetic after repeated extraction and purification.

Plant Sources

Most of the drugs are obtained from the plant sources. E.g. Morphine extracted from the plant

E.g. Morphine extracted from the plant OPIUM through the principle of ALKALOID.

Animal Sources

Microbial Source: Example: Penicillin

Mineral Source: Example: Aluminium

Hydroxide.

Synthetic Source: Example: Analgesics

Semi Synthetic Source: Example: Atropine

PICTORIAL REPRESENTATIONS OF ABSORPTION OF DRUGS