noun
Refers to the positive effect or benefit of something, often used for medicines, treatments, or methods. Similar to 効果 but with a nuance of inherent virtue or beneficial power.
この薬の効能には、解熱作用が含まれている。
The effects of this medicine include fever reduction.
温泉の効能を信じて、毎年湯治に訪れる。
Believing in the benefits of the hot spring, I visit for therapeutic bathing every year.