My cat is eating with cyproheptadine. Without it he starves himself. The vet had hinted renal failure as labs were "iffy" - "not great" before some dental surgery. After dental surgery didn't make my cat go through more blood work as he HATES the vets. Vet wants to do more blood work and doesn't want to keep my cat on cyproheptadine long term. Does any one have a cat with CRF that is on cyproheptadine long term? The vet has put him on it two (or three times) but whenever my cats stops the medicine he stops eating. He is 17. Hate to euthanize him. Have already spent $600 over the past couple months. Thanks.