Do a search-- clonidine is the classic med, but imodium will treat the GI stuff and there are a few other things that have been written many, many times before.
I am on day 2 and was wondering the same thing, I was taking anywhere from 140-200 mgs. a day and it's terrible, did u get any answers yet? Man this **** ***** and the cravings are almost unbearable, GOOD LUCK 2 U! :)