counteracts , counteracting , counteracted
To counteract something means to reduce its effect by doing something that produces an opposite effect.
My husband has to take several pills to counteract high blood pressure.
我丈夫不得不吃几片药来降低高血压。
The vitamin counteracts the harmful effect of allergens in the body.
维生素能抵消身体中过敏源的有害影响。