Someone close to me was able to get of alcohol with the help of very low dose lithium asporotate - lithium salt capsules but far far less amount that what bipolar people take. Another thing that really helped was caffeine. He started out drinking maybe 12 coffees a day the first couple days. He was able to drop that down after a couple weeks. He’s been sober five years and still needs a coffee at least five times a day.
It wouldn't surprise me if lithium might be helpful to some alcoholics.