, in the form of Vicodin and its generics, contains a large amout of acetaminophen, the generic
name for Tylenol, usually in the amount of 500 mG per pill. Taking large amount of this is dangerous, particulary to your liver. That's one of the reasons they put it in there, as a way to discourage addiction. So, if your scrip is for Vikes, keep this in mind.
However, your situation is more than just addiction. You have real pain.