I was on this drug for several months at the end of my drinking. The way it works is to induce severe symptoms including headache, nausea, palpitations, sweats in anyone who ingests alcohol.
This is supposed to mean that it acts as a deterent and stops the drinker taking the drink.
The fundamental flaw is that every alcoholic I have spoken to who used it and was not ready to stop drinking, drank while taking this drug, and suffered the effects.
I took this in the hope that it would stop me and it didn't.
When I got to AA, and developed a desire to stop, I continued to take it for a while because it gave my wife confidence that I wouldn't drink.
The solution to my illness is not chemical it is spiritual.
Michael