Publication:Dread Codex 2/New Spells/Vampiric Lust

The victim of this spell begins to dislike food and instead craves humanoid blood, much like the infamous vampire.

After a day of this spell being cast, the victim must make his first Will save. If unsuccessful, he gets the taste for human blood and will begin to crave it more and more. He can fight this urge, but if three days have gone without the victim drinking any blood, then he will take 1d4 points of constitution drain. After a week, the victim must make his second Will save. If successful, then he merely takes another 1d4 points of constitution drain and the spell is broken. If unsuccessful, however, then he must have the blood in order to live. At this point, every day that goes by without drinking blood he takes 2 points of constitution drain until he dies.

This is a powerful curse, and can only be countered by a wish, miracle, or greater restoration spell.