I'm currently taking thyroid S NDT, which I started on the 9th March. I've been increasing dose weekly by half a grain and now on 2 grains a day. However my basal body temp is still low, averaging 35.5. Initially, I stopped taking Levothyroxin, but have started taking it again. I take 150mg, which has been my dose for two years. Does anyone else take both? Do you find it beneficial? I don't think it's working for me..