Although... I must say, the CharlaineC's report above of adding
small doses of sun-dried tobacco leaf to the mash sounds interesting. Need to research it further how traditional it is. If anything, the Nicotine content in unfermented tobacco, leaf for leaf, is higher than in the fermented.
I grow half a dozen plants of Mapacho on my flowerbed, which is very strong and rustic. I strenghten my pipe mixtures with it when I'm feeling weird. Gonna harvest it in September. Little would go a long way in a beer, I think.
What if...
Mapacho Saison microbatch, anyone. No, not a Saison. Tobacco beer needs some chewier and sweeter base, I suppose. A Mapacho Rye Kveik?
@CharlaineC, what was the kind of beer you brewed with Tobacco?
I think I won't die from such a beer

as I happen to be highly tolerant of Nicotine (I don't find Gawith & Hoggart's Dark Plug or Peterson's Irish Flake too strong, smoke them in unfiltered pipes and inhale most of the time).