Quote Originally Posted by ody
No, the antidote stays in her body for three minutes so she can inhale all the poison she wants for that duration and the poison would turn to harmless proteins. When she got stabbed by Sasori's knife-on-a-rope (which was laced with poison), all she had to do was endure the pain because the poison was nullified.

I guess she wanted to end the battle within three minutes in case Sasori decided to use poison again, either by inhalation or puncturing.
Well, Sasori is poison... Since he's a puppet he shouldn't fear the poison, so that's why every weapon Sasori used was drenched in the stuff. Well, all except the fire I think. Never heard of a poison fire before