Nature-Throid is a T3/T4 combo.
All vitamin/mineral/supplements should be separated from thyroid medication by at least 4 hours or they inhibit the absorption of the thyroid medication.
I forgot to mention, As far as muscle pain and or weaknedd, try taking at least 1000 mg of Vitanin D and 400mg of Magnesium Glycinate twice a day. When I first came on this forum, I had terrible muscle pain, members here advised the Vitamin D and Mag. and it worked like a charm. Be sure to get "Glycinate" two other Magnesiums that are available do nothing for you and may have a laxative effect. Regards FTB4
As with any T4 Thyroid medication, Foods with fiber or at least high fiber should be avoided for four hours, I don't know if Nature Thyroid is T4 only or combo T3/T4, My MD stated since I am on Armour (A Combo Med) that the limits that apply to just T4 meds, do not apply to meds containing T3, This was in regard to my Hypoglcemis, I have to eat at least five times a day to keep blood sugar stable. Your T4 medication looses a percentage when carried away by fiber, so it reduces its effectiveness. Good Luck FTB4