The following parameters were measured before and at 6 and 12 months of levothyroxine treatment with an average dose of 1.5 to 1.7 μg/kg/day: thyroid-stimulating hormone (TSH), free thyroxine ...

The low NIS expression observed in thyroid ... that TSH secretion should be suppressed when using thyroid hormone treatment (e.g. levothyroxine) in all patients with persistent thyroid cancer.

Levothyroxine (L-T4 ... When the degree of TSH elevation associated with a low thyroid hormone level appears inappropriately low, pituitary insufficiency should be excluded.

Medically reviewed by Ana Maria Kausel, MD The thyroid medication levothyroxine should be taken on an empty stomach at around the same time every day. You should avoid eating or drinking for 30 ...

Levothyroxine is available as a lower-cost generic. You can find it for less than $2 at certain pharmacies with a free GoodRx ...

Reduce or withhold dose for 1 week if cardiac symptoms develop or worsen; restart at lower dose. Myxedema coma: use IV levothyroxine. Adults: Monitor TSH 6–8 weeks after dose change then every 6 ...