So I've posted before on Mr Trust on his animia, but he has developed bladder stones that we are trying to treat with hills urinary health formula. Well since being on in every morning the pour guy gets sick, we can tell hairball because mostly hair. Anything out there can help relieve this since he will be on this diet at least until April 12th for his follow up appointment. He have contacted the vet about it and seems like it's more a consurn that he's using the litter box more than anything which I understand.