Hello all! My 15 (almost 16) year old cat has hyperthyroidism and is currently on the Methimazole gel (transdermal) and I was wondering if anyone here is giving this to their cat? If so, have any of you seen your cat twitch? For example, Oscar will be laying next to me and every now and then, his head or body will twitch. He also twitches a lot when he is anxious (like when I'm cutting his nails or when he's in the car). Has anyone had this as a side effect? Or could be something else? Also, how long can we continue giving him this drug? I heard that it can sometimes stop working? Do you think it's something I can give for the rest of his life? It's kinda weird as he didn't have any symptoms (no weight loss and no enlarged glands). We only found out due to getting him a blood test back in February or March. His levels were actually pretty high (for me at least). If I remember correctly, it was over 60. But I could be completely wrong. My vet told me that it wasn't that high and that she's seen higher, but it still kinda scared us. Any info would be greatly appreciated! Thanks!