The active ingredient in Synthroid is levothyroxine sodium, a man-made hormone that works in the same way as thyroxine. Synthroid comes in 12 dosing options to help your doctor find the dose that's ...

BOSTON — Some infants require a levothyroxine dose reduction for iatrogenic hyperthyroxinemia when following guidelines for initiating therapy for congenital hypothyroidism. “The current ...

Synthroid (levothyroxine) is a prescription drug used to treat hypothyroidism and to suppress TSH. Learn about the drug’s dosages, form, strengths, and more.

The use of a decision aid tool helped providers better adjust levothyroxine dosing in adults who had a thyroidectomy. Data were derived from Brun VH, et al. Thyroid.

Clumps of hair falling out, thin eyebrows, and problems with body hair are all signs of low thyroid function. They can also be a side effect of Synthroid, particularly if your dose is too low.

The Phase 1 clinical study of levothyroxine (XP-8121) is a single ascending dose crossover design in 30 healthy participants to compare matching doses of oral levothyroxine (Synthroid®) and ...

There is no maximum dosage of levothyroxine because dosing depends on several factors. These include why the drug is being prescribed, your medical condition, weight, and age.