Ironguts doesn't work

[Yalta]

I tried casting this, drinking the potion and using a charge from an item and none give the +4 Fortitude save that you should get. In fact it does nothing.

[BrittanyPanthas]

Its only supposed to be +4 fortitude versus Poison, are you sure you tested it against poison?  As I'm pretty sure on all past characters I've had, it works properly against poison.

[Disco]

It has always used correctly when I have used it.

[Paha]

Indeed, it's only vs poison, so it's easy to mix it up.

[Yalta]

My newb-like knowledge of mage spells shines through. Apologises yes thats fine just tested and yes the poison only bonus is working fine.