効能(こうのう)

こうのう
noun
efficacy, beneficial effect, virtue
medical
1. efficacy, beneficial effect, virtue
The beneficial effect or power that something has, especially regarding medicine, hot springs, food, or other health-related substances. Often seen on product labels and at hot spring facilities.
この薬(くすり)の効能(こうのう)は高(たか)い。
This medicine has high efficacy.
温泉(おんせん)の効能(こうのう)が書(か)かれた看板(かんばん)がある。
There's a sign listing the health benefits of the hot spring.
このお茶(ちゃ)には疲労(ひろう)回復(かいふく)の効能(こうのう)があると言(い)われている。
This tea is said to have the beneficial effect of relieving fatigue.

Frequently seen on hot spring (温泉(おんせん)) signs listing health benefits, and on medicine and supplement labels. More formal than 効(き)き目(め) (effectiveness in everyday speech).

Common collocations

Related Words

Compare: 効(き)き目(め) (effect)
Compare: 薬効(やっこう) (medicinal effect)
general
Added 2026.2.18 23:16 · Revised 2026.9.2 13:01
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