Kathleen, I know that my co-moderator's husband was on both Lactulose and Xifaxan and it seemed to help. Undoubtedly, your mom's liver condition is deteriorating, but do ask the doctor about adding Xifaxan as it seems to help. I wouldn't expect her to become 100% clear, though. Some people get to that stage and are suddenly gone, while others will linger on for months being totally "out of it." It's a very individual thing. How is her diet and appetite? Cut beef out completely, if it has not already been done.
Hugs,
Connie