All the pot does is get you stoned. It does nothing for your opiate w/d other than make you high. Not saying it's good or bad, just stating the obvious. If you want to detox off the opiates you should check out the following link for the Thomas Recipe. Lots of people use this and are successful. Good luck and God bless. 
http://www.???????.org/health_pages/...show/16?cid=66
I am not a dr. My statements are based on years of experience and related education. Consult with the professional of your choice regarding matters of concern.