Hi Bud-man and welcome.
It sounds like Nal is working for you, but as others have said, those among us who have been drinking longer and are in our 40s and 50s take longer to gain control, this stands to reason: our pathways are much larger. But that's not a reason to loose heart, just tell yourself that (in aprox. 9 months time?) you too will gain control of your drinking and on the way, things will improve.
There is one golden rule though, you must wait at least an hour after taking Nal, please try to stick to that, also, if you are drinking all day, you would probably need to take a 2nd Nal, possibly even a 3rd of you are on a 24hour bender, Dr. E mentions this in the book.
I wonder too if you wouldn't mind writing how many units you drink, in your signature? It's really helpful for us to see eachothers' numbers and for you to see your progress. Go to "User Control Panel" on the top right of this page, then "Profile" on the middle left of the page, then "edit signature" Write your numbers as if it were a post and hit "Submit" when you're finished.
Good luck and keep posting!
Curi