For me it's been about 3 years since no booze, best thing I ever did although it didn't always seem like it in the beginning. I've heard of this drug (about 5 years ago before I realized I just had to admit defeat at controlling booze) ... and I've heard that it works for some completely, although as with most wonder drugs that work for all or many completely, I have not met one of these people :-). That's NOT to say it doesn't work ... that is a totally unscientific comment.
That said, if you quit totally 100%, once you get to the other side (when the obsession is gone, the craving, the desire) you wonder why you looked for so many complex solutions to what is a totally simple (if not easy at the time) problem. If anything else was negative in your life - and you knew the dangers, you'd kick it out immediately, entirely. Not so with booze, and it's not weakness of will or intelligence. I'm a second degree martial artists, run marathons, wikid smaht and all that.
So one man's opinion: If it's a problem, the solution is to give it up, 100%. It's very obvious in fact - especially when some time later you can't remember what it tastes like or remember what a buzz feels like, so there's no craving, but it's not obvious when you're in the middle of the fight, or the confusion about whether to give it up, which is frought with all kinds of ego stuff about 'letting something beat me' and 'well what's the point of life if you can't reward yourself' ... there are plenty of rewards once your body and mind adjust, and your life is consistently much better, peaceful, you get to a point where you don't even think about because you feel good most of the time. The bad times are short-lived, and you've learned they pass on their own.
So -
For heavy/alcoholic drinkers - there is a lot they don't know they don't know, as Rumsfeld would say. They will never be aware of all the negative that came from it, or all the positive they never knew about.
So, I have no moral position on it. But I will say this: If you want to maximize your happiness, quality of life, what you contribute to others' lives, connection to God if you have one ... and if you even have any question about whether the booze is bringing negativity into your life ... and you still think 'finding a way to continue drinking in a controlled way' is a good idea ... isn't that in itself a signal that it's an addiction, and if it's an addiction, isn't the logical (some would argue moral - I'm not arguing that here) ... isn't the logical rational thing, since it's a totally unnecessary nutrient, in fact it's a toxin, ... isn't the logical, self honest thing to do ... to kick it out?
That probably sounds like a lecture ... it's actually not ... it's just how I see it having been through it. There is nothing wrong with trying this, but I kind of feel like I'm totally on the other side of the river of sewage and far, far from it, on dry land in fresh air, saying 'why buy a raft that floats on sewage - that allows you to stay in the sewage but avoid the sewage? Why not just get out of the sewage river?'
Hope that helps, even if I totally didn't answer the actual question.