counteract
verbUK /ˌkaʊntərˈækt/
US /ˌkaʊntərˈækt/
To do something that stops another thing from happening or makes it less strong.
Eating oranges can help counteract a cold.
OTHER MEANINGS
2. To act against something in order to reduce its force or effect.
The medicine counteracts the effects of the poison.
3. To balance or make up for something with an opposite force.
The new taxes counteract the benefits of the subsidy.
4. To fight back against an action or influence.
The government took steps to counteract the spread of false information.