He was prescribed vicadin and then stepped up to Norco for an injury that had to be operated on. He hates the side effects of the Norco (Vicadin without the Acedomenaphin added) and he decided to stop taking it, but he goes through withdrawl symptoms that are absolutely insane. It has become evident that he is definintely physically dependent on it now. His moods are completely out of wack anymore, he feels depressed, panicky, and incapable of the kind of happiness he is used to feeling.He stopped taking it yesterday after talking with another person that went through 2 years of this and suffered about a thousand times more (my friend has only been on it for under 3 months). He has been going through bad withdrawl.Does anyone know how long the withdrawl will last until he's back to normal? Any other info/advice? Thanks.FYI: His dosage was 6 of the large white Norco pills per day for 2 1/2 months.