CRUDE DRUGS
It is the raw plant material that are used as drugs, are termed as crude drugs
Example: Leaves of Senna
These crude drugs are furthur divided into 2- type.
ORGANISED DRUGS
This category of dugs are obtained directly from plant parts such as leaves, roots, stem.
EXAMPLE:
STEM- Ephedra- சோமமும்
LEAVES- Senna - ஆவாரை
FLOWER- Clove - கிராம்பு
FRUITS- Coriander - கொத்தமல்லி
SEEDS- Nutmeg - ஜாதிக்காய்
UNORGANISED DRUGS
These are the secondary metabolite produced by higher plants and are the oxidative products of terpenes.
They gets converted into Polymers
It act as Coagulants in plant for response to Injury.
Eg. Benzoin, Asafoetida
2. GUMS
These are the carbohydrates that binds with water to form gels (Hydrocolloids)
These are the mixture of Amorphous polymers and Monosaccharides
Eg. Acacia, Tragacanth
3. LATEX
It is the milky Exudates that coagulate on exposure to air.
It is the suspension/ Emulsion in which aqueous phase is composed of mineral salts, sugar, alkaloid
Eg. Opium latex
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