I need help in trying to dissolve a very small stone in my cats' bladder. Raven is 13 years. Sor far she has refused to eat all the food the Vet has recommended. The only one she will remotely touch is the Dissolution Diet in Gravy. Does anyone know if there is an oral medication that will dissolve the stone? Surgery may not be an option, not only because I cannot afford it, but Raven also has a heart murmer. I am getting rather frantic about this as Raven has accidents all over the house, including my bed. Any advice anyone can provide would be most welcome. Thank you.