If your custom combat script is set to cure poison via the special commands, then it will automatically try to buy anti-anti-antidote from galaktik and keep some in stock for mid combat use.
If galaktik is unavailable (ex: zombie slayer, nuclear autumn, or kingdom of exploathing paths) it will result in an error when trying to buy which results in aborted automation. As well as aborting something like
"adv * Daily Dungeon"
with the error message:
You need 1 more anti-anti-antidote to continue.