Answer / jyothi

-drug Potency is a measure of drug activity expressed in terms of the amount required to produce an effect of given intensity.
-drug Purity is a measure of the amount of API present in a sample compared to those of related substances, impurities, residual solvents, etc.

Answer / vattikuti rambabu

Drug purity word use in USP
Drug potency or content word use in Ph.Eur

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