I think your son is very lucky to have such a strong family support system. It is great that you were able to find information on the stages of withdrawal; your son needs to understand what he is up against so he can prepare mentally; and those around him need to be aware also. I know a lot of people have shared with you here about the multiple failed attempts they have experienced; but it doesn’t always work out that way. My husband made his first attempt to end opiates and benzos (Xanax) and got so sick that he did pick back up, but we (myself and my parents) immediately helped get him into treatment & he has been clean now for 7+ months. If there is a will, then there is a way. I will be keeping your family in my prayers.