vtsister the best thing you can do for your brother is what my wife and family did for me, force him to have to face his alcoholism alone!!!!
I sobered up once I realized that no one was going to help me any more! No one was going to put a roof over my head or food in my belly, no one was going to pay my bills for me, it was me and my bottle against the world!!!!
As long as someone was helping me I was going to lie all I could to where I could keep on drinking.
You and your husband need to look out for your selfs, go to alanon. He is going to continue to drink and drug as long as you all keep helping him in any way! The only help you should give him is a ride to rehab/detox.
There is nothing you can do to help him except to quit helping him, he is the only one who can help him. You are not at fault once you stop helping him.