薬効 (やっこう)medical efficacy; effect of a medicine

薬効, its kanji, and other words that share them.Open this graph

Kanji in 薬効

薬くすりmedicine; pharmaceuticals
農薬のうやくagricultural chemical (i.e. pesticide, herbicide, fungicide, etc.); agrochemical
麻薬まやくnarcotic; drug
医薬品いやくひんmedical and pharmaceutical products; medicinal supplies
薬物やくぶつmedicines; drugs
薬品やくひんmedicine; chemicals
製薬せいやくmedicine manufacture; drug manufacture
弾薬だんやくammunition; ammo
効果こうかeffect; effectiveness
有効ゆうこうvalid; effective
効率こうりつefficiency
効果的こうかてきeffective; successful
無効むこうinvalid; void
実効じっこうpractical effect; efficacy
発効はっこうcoming into effect
効率的こうりつてきefficient

See how 薬効 connects to the rest of Japanese.