Veterinary L-thyroxine

I have a lot of 0.5mg tablets of L-thyroxine left over from when my dog used to take thyroid meds… can I use it to burn fat? if so how much should I take?

at 500mcg per tablet…I think no more than one a day.

I have no idea, but it seems like a bad idea. I would feel much safer with T3, its pretty cheap and easy to find.