Carbona!!! OMG I love this stuff. when Kat was first getting sick, she was vomiting bright red cat food, and nothing I tried got it out, well I saw Carbona at the grocery store earlier and decided what the heck, I'll try. IT WORKED!!! OMG no more scattered red stains, and thats after they were 5 days old.. I love this stuff!! Plus it was only $5