...but his phosphorus was normal, at least according to that last test.
As Elise said above, his P needs to be closer to 4.5. The normal ranges include kittens which is why you see the upper limit of it so high but a cat with a P over 6 has too high of a P. His levels have been pretty consistent. Personally, I would try a small amount of binder and see how that helps. I linked the info from Tanya’s on binders and dosing back a week or so ago. Be sure you have his labs rechecked after a few weeks using the binder.
One of the main things to control with CKD is P levels because they are a good indicator of longevity. High P levels can cause so many other cascading events with CKD that you really want to focus on keeping it under control.
https://www.vin.com/apputil/content/defaultadv1.aspx?id=7054720&pid=12886
What do you think of this treatment,
@Marje and Gracie ?
Could you please, if you know, let me know how to deal with SIBO?
Thank you
That’s a great article. I’ve never had a cat with SIBO but since Gracie has IBD, I am familiar with SIBO.
This link provides you with good info from a CG standpoint and what they did. I am familiar with this CG as she helps out a lot on the IBDKitties FB group. She’s really knowledgeable about SIBO as well as IBD. I would read her information and references and then discuss with your vet.
I’ve never used Tylosin. I believe
@Sienne and Gabby (GA) has friends whose kittens had raging diarrhea and they might have used it so she might be able to offer you some thoughts. I have used Metronidazole long ago only one cat just for colitis. My vet stays away from antibiotics as much as possible. But....you are dealing with an entirely different issue that you need to figure out with your vet and do what Maxi needs.
You might also want to discuss giving him digestive enzymes (
not pancreatic enzymes). Pancreatic enzymes are for cats diagnosed with EPI which he was not. They are very expensive and can be caustic if not given correctly. I use
Mercola (at the direction of my vet). While my Tobey does not have any intestinal issues at this time (paws crossed), he had coccidia as a kitten and that can put kitties at a disadvantage GI-wise so we give him good supplements and feed a balanced raw diet to support his intestines. Since you are giving S boulardi, you can just add the Mercola (if you’re vet agrees with giving it) to the S boulardi, add water, and syringe. What would be even better and help him with motility and GI Health, in general, is to add in with those supplements some
egg yolk powder. I would go very, very slow with the dosing on that. Egg yolk powder is great for constipation so you don’t want to go overboard with a cat that has diarrhea but since SIBO can be a motility-issue problem, a small amount of egg yolk powder might help. It’s an excellent nutrient. I use this also with both my cats just because it has so many benefits.
Word of caution: for anything you try, do one thing at a time. In other words, if you decide to try the above things, don’t start digestive enzymes and egg yolk powder at the same time. Anything you add, whether it’s from the vet or a supplement, do one at a time so you know what is or is not addressing the issue.
Lastly, if those things don’t work or help, I know a lot of people that have had great success with fecal implants from
Animal Biome. I’d just keep that info in my back pocket if nothing else helps. I wouldn’t start there but it’s an option down the road, if need be.
And
here’s the thread that discussed why we don’t recommend using Entyce.
I hope that helps you with things to discuss with your vet. Good luck!
First, about the only low P food you will find that is 0.5% or lower on a DMB are the prescription renal diets. There might be one or two that are not. 
