The good news is: I found the course material. The bad news is: there wasn't much, and most of it focused on alcohol and street or pharmaceutical drugs.
That said, some of it did mention smoking, and for all addictions the basic recommendations were as follows:
B vitamins (as mentioned above. BTW, they are water-soluble, so the body will excrete what it doesn't absorb. They can be taken in the morning and again at lunch, but since they provide energy, it may not be a good idea to take them near bedtime or they may keep you awake).
Vitamin C for immune support and to help with detoxing. Also water-soluble.
Essential Fatty Acids to nourish the brain
Hydrating with lots of clean water -- helps to flush the toxins out of the body
Detoxing (milk thistle is good for the liver, which is the main organ for filtering everything the body takes in; also vitamin C and hydrating as previously mentioned)
Eliminating sugar, white flour, etc. from the diet
Eating protein (small meals) several times a day to keep blood sugar steady
Personally, I'd just focus on the B vitamins, vitamin C, hydrating, etc. and not worry
quite so much about the last 2 on the list, or it could get really overwhelming. That's just my
. I'll stop now.