Antidote

[Lat. antidotum, Gr. ἀντίδοτον (sc. φάρμακον), from ἀντίδοτος, given against, from ἀντί, against, and διδόναι, to give.]

1Sense 1. A remedy to counteract the effects of poison, or of any thing noxious taken into the stomach.

2Sense 2. Whatever tends to prevent mischievous effects, or to counteract the evil which something else might produce.

Some sweet oblivious antidote to cleanse the bosom. Shak.

Synonyms—Remedy; counteraction; preventive.