He needs to stop drinking all together. With drinking the meds wont do anything infact it may make things worse. He needs to go to a AA support group and Al-Anon is a good group for those effect by anothers person drinking. Also once he stops drinking the meds if he is willing to take them will help him. Also both of you should go to couples counseling and also you might benifit from one on one yourself. Hugs