found in them. Hence taste is the most important factor in the science of medicine and forms the primary attribute of a medicinal drug. But, later on, we shall have occasion to speak of that.
Certain authorities however, (who reject the two aforesaid theories), hold the potency (Viryam) of a drug to be the most important factor in medicine inasmuch as its therapeutic action, whether purgative, emetic, or both, or cathartic, or pacifying, or astringent, appetising, pressing (drawing to a definite head) or liquefacient, or constructive, tonic (vitalising) or aphrodisiac, or inflammatory, absorbing, caustic, or bursting, or intoxicating, soporific, killing or antitoxic, depends upon its potency. The potency of a drug is either cooling or heat-making owing to the twofold (hot and cool) nature of the temperament of the world. According to several authorities the potency of a medicinal drug may be classed as either hot or cool, emollient or dry, expansive or slimy, mild or keen, so as to embrace the eight different attributes in all. These potencies of medicinal drugs serve their respective functions by overpowering their (drugs') tastes with their specific strength (intensity) and virtues. As for example the decoction of the roots belonging to the group of the Maha-Panchamulam, though possessed of an astringent taste which is subsequently transformed into a bitter
