Looking for a Visbiome alternative

My cat is on Visbiome, but with his arthritis medication every month, it is so much. Is there a probiotic that is like this but cheaper? I don’t want to take him off of it because it’s been wonderful for him. He has stopped puking because of the probiotic is helping with his gut inflammation.

It’s easier for him to take pills than in powder form, he’s picky.

Thank you!