I have developed liver toxity from a high dose of antibiotics and my liver enzymes are elevated they are coming down slowly except my biliruben which is 3.4 so my Doctor gave me this drug to take 2X a day, I have developed a major headache and a nasty back ache. Does this work for biliruben levels? How long will it take? I am already itchy from the biliruben and I noticed that itchiness is one of the side effects. Any help for the headache?? Thanks so much.