It was under the Methimazole name that had him by the throat -- even 1.25 mg was too much. I thought Tapazole was another name for the same drug? From the thioamide group? I was going to see what the natural people had come up with, to see if anything works for cats.

I was low thyroid, so none of the herbal supplements I used apply in this case.

So he can't handle either Tapazole or Methimazole?