I am not that familiar with Toxo, but I do know something about helping the side effects such as nausea.
1/4 pill Pepsid BID (twice a day)
Check with your vet about the weight of the kitten and the dosage.

I think other cats and humans can catch Toxo as it is shed through the litterbox.

The kitten should be isolated, the litterbox should be bleached often.

I do believe you might still lose him, but you might not. Which is not the case with FIP which is always fatal.

If you really think it's not FIP then help him. If there is a fluid buildup in the abdomen or chest, the kindest thing to do would be let him go.


When you get a chance, we want to see pix of Casey.


Thank you for caring.

I will cross post your inquiry on another site.