After my dog's sterilization surgery, as soon as he smelled this, he ate it the same night of the operation.

The vet recommended it to me for my elderly cat who has serious health problems. As an alternative, he suggested Purina's Propranolol. In the end, I stuck with Hills because Purina seemed to cause her diarrhea. I mix it with a little warm water and put it in a syringe. It becomes like a mousse. My cat loves small and frequent meals. She doesn't like eating it alone because she loves the small pieces, not the pate or mousse-like texture. She eats dry kibble on her own. Overall, she prefers refined food. Of course, it's not cheap, but it's worth it for our little friends. So, I deduct one star for the high cost.