I do not know why rue influences smoking. It absolutely was counter-intuitive for me too. I have no idea the mechanisms included. But it really is absolutely accurate. I have not tried it, but I realize people who have, and it can be nicely documented on the net. I think https://digibookmarks.com/story19967025/the-smart-trick-of-can-you-buy-ayahuasca-tea-that-no-one-is-discussing