I personally would not retroactively remove damage that had already occurred. So a giant black centipede would still inflict the damage even if the poison were drawn. In the case of a giant brown centipede, draw poison would interrupt the cumulative damage process and prevent further damage, but it wouldn't cure the damage that happened before the poison was drawn. In the case of a giant pink or green centipede, draw poison would cure special effects such as blindness and paralysis. Or at least that's how I see it.
ETA: Also, I don't believe draw poison can help someone hit with an "instant kill" poison (such as from a phase spider). It can only help a bite victim if the poison takes some time to kill. This is a first level ability we're talking about!
Last edited by Blackadder23 (4/07/2020 12:46 am)