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- What is liothyronine sodium, and how does it work (mechanism of action)?
- What brand names are available for liothyronine sodium?
- Is liothyronine sodium available as a generic drug?
- Do I need a prescription for liothyronine sodium?
- What are the side effects of liothyronine sodium?
- What is the dosage for liothyronine sodium?
- Which drugs or supplements interact with liothyronine sodium?
- Is liothyronine sodium safe to take if I'm pregnant or breastfeeding?
- What else should I know about liothyronine sodium?
What is liothyronine sodium, and how does it work (mechanism of action)?
Liothyronine sodium is a synthetic (man-made) version of one of the two hormones made by the thyroid gland, triiodothyronine. It is used for treating individuals who are hypothyroid (do not produce enough thyroid hormones). Thyroid hormones increase the metabolism (activity) of all cells in the body. In the fetus, newborn infant and child, thyroid hormones promote growth and development of tissues. In adults, thyroid hormones help to maintain the function of the brain, the use of food by the body, and body temperature. The FDA approved liothyronine in May 1956.
What brand names are available for liothyronine sodium?
Is liothyronine sodium available as a generic drug?
GENERIC AVAILABLE: Yes
Do I need a prescription for liothyronine sodium?
What are the side effects of liothyronine sodium?
Liothyronine therapy generally is well-tolerated. If symptoms occur, they usually occur because there are toxic (too high) levels of thyroid hormone (hyperthyroidism).
Symptoms of hyperthyroidism include:
- chest pain,
- increased heart rate,
- excessive sweating,
- heat intolerance,
- weight loss,
- fever, and,
- rarely, cardiac arrest.
Women also may experience irregular menstrual cycles.
Since thyroid hormone affects heart rate and metabolism, the impact of treatment of thyroid hormone on the control of diseases such as atrial fibrillation, diabetes and high cholesterol levels always should be considered.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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