Neutralize Poison

This spell detoxifies any sort of venom in the creature or object touched. A poisoned creature suffers no additional effects from the poison; if cast upon a creature slain by poison in the last 10 rounds, the creature is revived with 1 hit point. If cast upon a poisonous object (weapon, trap, etc.) the poison is rendered permanently ineffective.

Reversed, this spell becomes poison. The caster must make a successful attack roll; if the attack is a success, the target must save vs. Poison or die. The caster's touch remains poisonous for 1 round per level of ability, or until discharged (i.e. only one creature can be affected by the reversed spell).