I was on 4mg twice per day, so 8mg total. I thought I'd be OK since my OC tolerance was pretty high and I would start to w/d sometimes only 6hrs after snorting last. Sub Dr thinks my body isn't used to something so long acting. However, side effects from Sub really turned me off. Personally, I think willpower, meetings, and support are key factors to recovery. But I'd much rather use even a quarter of a Sub strip then to score again. Either way, I know I don't want to be on Subs for even three months so I am going to work at this very hard.