The mage can cleanse herself of drugs, toxins or poisons.
Spellcasting successes are added as bonus dice to rolls for overcoming a drug[1], or allow a mage to ignore an equal amount of points of poison damage[2].
Adamantine Arrow Rote: Purge the Unbidden
While it doesn’t happen quite as often in modern times, it was once the case that guardsmen and warriors often needed to be mindful of poison. Adamantine Arrow mages use this rote to purge unwanted influences from their systems. Of course, the spell is as effective on, say, alcohol as it is on strychnine, so mages of all orders eventually manage to find one use or another for it.