My DH had a stroke 4 years ago and made a good recovery, but it took a long time. While he was on recovery meds/in rehab. there was a long list of things he couldn't have. Don't remember them all, but I do know that grapefruit and spinach
were in there, and alcohol.
I would guess that the hospital considers the stroke to be the primary problem, and staying on that medication is more important than meds. for alcohol withdrawal. These first few weeks after the stroke are very important--most of the recovery that's going to be made will be made now.
Good luck to all of you. My thoughts and prayers are with you.