How does Delay Poison work? Here is the spell's description from the SRD.
Delay Poison
Conjuration (Healing)
Level: Brd 2, Clr 2, Drd 2, Pal 2, Rgr 1
Components: V, S, DF
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 1 hour/level
Saving Throw: Fortitude...