Since starting to take T3 20 months ago, I've been tweaking my dose of T3 and Levo, to try and find my optimum combination. Currently I'm taking 125 Levo with 37.5 T3.
About 4 weeks ago I used Mexican Cynomel instead of UniPharma, and my hypo symptoms started to return. So I've gone back to Unipharma, and feel better; but I haven't got many packs left of these now.
Is Cynomel known to be a weaker brand? If that's a known thing, I could increase the Cynomel slightly.