We don't know!!
The biggest problem is that we truly don't know the answer to this question.
If we did, it would be easy to detox because each person would know just how long they would have to suffer the withdraw for. It's the not knowing that makes it so hard--especially when you know what to take to feel all better! tough way to live each day, don't you think? I strongly agree with dr. Passer--stay on it!