As nouns the difference between efficacy and potentness
is that efficacy is (uncountable) ability to produce a desired amount of a desired effect while potentness is the quality or state of being potent; powerfulness; potency; efficacy.
efficacy
English
Noun
(-)
(uncountable) Ability to produce a desired amount of a desired effect.
Synonyms
* efficacity
Related terms
* effect
* effective
* effectiveness
* effectivity
* effector
* effectual
* effectuate
* efficacious
* efficacity
* efficiency
* efficient
External links
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potentness
English
Noun
(-)
The quality or state of being potent; powerfulness; potency; efficacy.