Definition of "arsenicked"

Physical poison would make them start from arsenicked bread; shall not the moral poison which is in it, make them start more promptly still from slave produce?

1836, Elizur Wright, Quarterly Anti-slavery Magazine, volume 2, page 162

New families are frightened of natural threats more than the old woes: Christian daycares, arsenicked Snickers.

2017, JoAnna Novak, I Must Have You