効能

(1)capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"

(2)望ましい効果を出す能力または力

(3)a useful or valuable quality

(4)役に立つ、または価値のある性質

(5)capacity to produce strong physiological or chemical effects; "the toxin's potency"; "the strength of the drinks"

(6)強い生理学的な、または化学的な効果をうむ能力

(1)