Thank you both. I think potentially a grain free diet may be in order and I'll look into all the suggestions, including the prescription RC one. If the metro doesn't work, I'll call my vet and see what he thinks we should do before just starting a new diet though. I just wish I know what...
Thanks to everyone for the advice. They were feeding him only dry at the last place he was at - a Wellness one. But he was originally at animal care and then in a foster home before going to one of those adoption cages at petco (when I found him), so I have no idea what he was being fed...
Thanks. I'm feeding him a variety of food - both wet and dry. I've got high and low end food - from Wellness to Friskies. I have two other cats and that is what they all eat. I've started him back on the propectalin. I found that if I get it on my finger I have a better chance of getting it...
I adopted a new adult cat about 7 weeks ago and he has had loose stools pretty much since I got him. I initially thought it was because I had switched his food too soon (my fault), but it persisted. He had 2 negative fecals from the shelter I adopted him from, but I brought him to my own vet...