I hope so. Unfortunately, even for married addicts, it seems to require 3-6 mos residential tx, followed by a considerable amount of time in a sober-living arrangement of some sort to have a hope of coming out clean, and still, relapse is common.
Vivitrol might be an option for the OP's husband because he really WANTS to quit and gets no pleasure out of drinking. (From what it sounds like.)
He's drinking to "get well" as opposed to "get drunk". Getting drunk is a side effect, so to speak. Vivitrol would block both the "drunk" AND the cravings.