The necessary antidotes had been administered in time and she was now out of danger, though still so weak that it was out of the question to move her to the country, and so the countess had been sent for.
There are no more uses of "antidote" in the book.
Show samples from other sources
Yeah, an antidote to the stupidity of dating.
Laurie Halse Anderson -- The Impossible Knife of Memory
But Andie was no longer the antidote to my nerves.