In the book there's mention of using Nal for binge eating, but I don't know if it's effective across the board for sugar addiction. I did a quick search on Naltrexone sugar addiction and ran across this:
http://drhyman.com/blog/2011/02/04/stop ... -genetics/but I don't know what kind of doctor this guy
is and he is selling product from that website, which does not bode well. Might give you some good leads for further research though. NB, Contrave only has 8mg Naltrexone in it, I have no idea what effect of adding more Naltrexone to the mix would have, whether it would be a good thing or bad, you might need to find a TSM doc to figure that out for you.