Ironguts

You make a creature more able to fight the effects of poison.

(Magic of Faerun)  
Originally posted on D&D tools

Abjuration

Level: Sorcerer/Wizard 1,
Components: V, S, M,
Casting Time: 1 action
Range: Touch
Target: Creature touched
Duration: 10 minutes/level
Saving Throw: Will negates
Spell Resistance: Yes

The target gains a +4 circumstance bonus on Fortitude saves against all kinds of poisons, whether injury, contact, ingestion, or inhalation is the source of the poison.

Material Component: A vial containing the diluted poison of four different creatures.