The Ultimate Vampire Resource and Directory

"An urge is just another name for an addiction/craving. The body might very well be telling your brain that it's missing something, and expecting you to replace it. If it falls in the realm of an addiction, then all bets are off. No one knows conclusively what the mechanics of addiction are, much less how to stop it. If it's a craving related to the condition of the sufferer's body, then that is something we can more readily sort out and investigate."