Someone recently asked me about a new type of potential stop smoking pill using the drug mecamylamine. I hadn’t heard of it, but this is what I found on Wikipedia:
Mecamylamine is also sometimes used as an anti-addictive drug to help people stop smoking tobacco, and is now more widely used for this application than it is for lowering blood pressure. This effect is thought to be due to it blocking α3β4 nicotinic receptors in the brain.