What is levothyroxine 125 mcg used for?

Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery.

What is the mechanism of action for levothyroxine?

Mechanism of action T4 and T3 bind to thyroid receptor proteins in the cell nucleus and cause metabolic effects through the control of DNA transcription and protein synthesis. Like its naturally secreted counterpart, levothyroxine is a chiral compound in the L-form.

How does levothyroxine work in the treatment of hypothyroidism?

Levothyroxine is a medicine used to treat an underactive thyroid gland (hypothyroidism). The thyroid gland makes thyroid hormone which helps to control energy levels and growth. Levothyroxine is taken to replace the missing thyroid hormone. Levothyroxine is only available on prescription.

How do I calculate how much levothyroxine to take?

— Calculating levothyroxine dose by weight is comparable to using body-fat percentages or BMI, according to data presented here. “Traditionally, starting replacement doses of levothyroxine have been calculated by multiplying the patient’s total body weight by 1.6 ug/kg,” the researchers wrote.

What is levothyroxine used for in humans?

Levothyroxine is used to treat hypothyroidism (condition where the thyroid gland does not produce enough thyroid hormone). It is also used with surgery and radioactive iodine therapy to treat thyroid cancer. Levothyroxine is in a class of medications called hormones.

What does levothyroxine help with?

Levothyroxine is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. Levothyroxine is also used to help decrease the size of enlarged thyroid glands (also called a goiter) and to treat thyroid cancer.

How is levothyroxine administered?

Levothyroxine comes as a tablet and a capsule to take by mouth. It usually is taken once a day on an empty stomach, 30 minutes to 1 hour before breakfast. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.

What is levothyroxine?

Levothyroxine sodium is a drug approved by the FDA as an oral and injectable prescription thyroid hormone medication that is used to treat underactive thyroid (hypothyroidism) and other conditions. Hypothyroidism is a medical term that refers to any state in which a person’s thyroid hormone production is below normal.

What are the indications for levothyroxine?

DOSAGE & INDICATIONS

• For the treatment of hypothyroidism of any etiology, except during the recovery phase of subacute thyroiditis; used as a replacement in primary (thyroidal), secondary (pituitary), tertiary (hypothalamic), congenital (cretinism), or acquired hypothyroidism.
• For the treatment of myxedema coma.

What is the purpose of thyroid medication?

Thyroid drugs (thyroid hormones) are used to supplement low thyroid levels in people with hypothyroidism. Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormones to meet the needs of the body. Doctors may use the term “an underactive thyroid gland” to describe hypothyroidism.

How do you calculate thyroid?

If TSH measures > 4.0 mU/L, a second test (T4) is performed to verify the results. TSH > 4.0/mU/L with a low T4 level indicates hypothyroidism. If your TSH is > 4.0 mU/L and your T4 level is normal, this may prompt your physician to test your serum anti-thyroid peroxidase (anti-TPO) antibodies.

How is TSH calculated?

The TSH test involves simply drawing some blood from your body. The blood will then be analyzed in a lab. This test can be performed at any time during the day. No preparation is needed (such as overnight fasting).