Hill's Prescription Diet Feline y/d Thyroid Care - cat wet food

A couple of weeks ago, my 15-year-old cat was diagnosed with hyperthyroidism. We got a bit scared and bought the y/d tins. For me, the downside is that they only come in packs of 12, not fewer, and they're not mousse-type. For my cat, they're no good. He sniffs them and walks away. I've already gone through a can and a half and he hasn't eaten any of it. Luckily, food lasts if he likes it. So I hope that with this food, by the end of the month his T4 levels will have dropped and he won't need medication. I'll donate the tins to a shelter, because they're just not for him.