Revatio is also marketed as Viagra. So I doubt it's the drug that is making him that way. It sounds more like encephalopathy. Is he taking Lactulose? If so, his dosage may need to be increased. If he's not taking it, perhaps you should ask his doctor about it.
Do you have any neighbors or relatives--or anyone at all--who could stay with him at least part of the time you are at work? If he cannot be left alone and you have nobody to watch him, perhaps you should let his doctor know and see about placing him in a NH. I hope that somebody may have a better suggestion for you.
Moonroe, you posted while I was replying. I'm glad that he was admitted. Try to get some rest yourself while you know that he is being cared for.
You're welcome, Mimi. Absolutely get some good sleep while he is in the hospital. As I recall, PG's husband was on both Lactulose and Xifaxan. Perhaps that is what he will have to do, despite the diarrhea, if it keeps him from getting encephalopathy. It really is a very tiresome balancing act.
I am usually at home and check the board frequently, though I'm getting ready to move and don't have quite as much time. I can't believe the amount of junk I accumulated in the 10 yrs. I've been in this place!