DRAVYAGUNA
Dravyaguna deals with study of medicinal herbs& drugs, their origin, nature, properties & effects upon human beings.It finds its parallel in the modern science of pharmacology. It’s a complete science of herbal plants.
It’s including pharmacognosy, pharmacology and therapeutic uses of the plants. Ayurvedic drugs, especially herbs are prescribed in different pharmaceutical forms, to get maximum therapeutic effect.
The word dravyaguna consist of 2 words:
1) Dravya = material of thing which can be living or not living.
2) Guna = properties
According to Charaka there is nothing on the earth which is not medicine. That’s why Ayurveda considers all substances as medicine, if used for specific purposes in an appropriate way.