Alright, ill try to answer all. Thyroid brand is tiromel and euthyrox for t4, i split them during the day, take them with food 1-2 ratio.
You might like to experiment with different brands. I have taken many different brands of t3. Their effects were all wildly different even in what was supposedly the same dose. It was quite surprising to notice the variation.
Cynomel and Cynoplus have the best reputation for good reason.