"It is important to note that mithridatism is not effective against all types of poison, and, depending on the toxin, the practice can lead to the lethal accumulation of a poison in the body."
"There are only a few, if any, practical uses of mithridatism. "
"It is important to note that mithridatism is not effective against all types of poison, and, depending on the toxin, the practice can lead to the lethal accumulation of a poison in the body."
"There are only a few, if any, practical uses of mithridatism. "
I think that will be my takeaway.
In case you didn't know, it looks like Iocane Powder is an imaginary substance: https://en.wikipedia.org/wiki/List_of_fictional_toxins