a medicine or other remedy for counteracting the effects of poison, disease, etc.

something that prevents or counteracts injurious or unwanted effects

Good jobs are the best antidote to teenage crime.

to counteract with an antidote

Medication was given to antidote the poison the child had swallowed.

noun

antitoxin , antivenin , corrective , counteractant , counteragent , countermeasure , counterstep , cure , medicine , negator , neutralizer , nullifier , preventive , remedynotes:an antidote is a remedy or other agent used to neutralize or counteract the effects of a poison; an agent is a force or substance that relieves or counteracts; an anecdote is a short account of an interesting or humorous incident , curative , alexipharmic , alexiteric , counterpoison , remedy