tells me that levothyroxine and levothyroxine sodium are exactly the same and they only cover levothytroxine sodium (which should meet my requirements. My doctor's Rx is for levothyroxine 137mcg tablet. I had Papillary thyroid carcinoma and in the last years I've experienced Hypothyroidism, post ablative. Can you please clarify for me if there is or not a difference between levothyroxine and levothyroxine sodium? Thank you in advance. Nora