Cytomel is the brand name for a prescription medication called Liothyronine, used to replace the thyroid hormone T3. T3 helps to regulate the metabolism and the body's energy. A functioning thyroid gland naturally produces T3. If the thyroid gland is not producing enough hormones, symptoms including fatigue, depression, weight gain, hair loss, joint pain and lack of concentration can occur. Cytomel can help to reverse these symptoms.
Function
Cytomel is used to treat hypothyroidism, to treat an enlarged goiter and other thyroid conditions. Drugs.com explains that synthetic thyroid hormone medications, like Cytomel, help to increase the metabolic rate of the body and increase oxygen absorption, which affects every organ of the body and the nervous system. The body absorbs Cytomel rapidly, with the effects lasting approximately four hours.
Dosing
The National Institutes of Health notes that dosing often begins with one dose, first thing in the morning. A physician may increase or decrease the dose based on blood work results and symptoms. Dosing may require the medication be taken every four hours to maintain consistent effects throughout the day. It can take up to two weeks to feel the full effects of Cytomel and to determine the correct dose. Thyroid replacement is often taken for life.
Side Effects
When taken as prescribed, side effects may include temporary hair loss or a possible allergic reaction. Hives, swelling of lips, tongue or throat and difficulty breathing may be signs of an allergic reaction. Abusing this medication or taking more then the prescribed dose can cause additional side effects and a possible overdose. Continuous excessive dosing will produce signs of hyperthyroidism including confusion, weakness, headache, diarrhea, sweating, vomiting, irritability, swelling in the hands or feet, weight loss or insomnia. Seek immediate medical attention if symptoms including a fast or irregular heart rate, chest pain or fainting occur.
Precautions
Certain medications and other medical conditions can affect the function of Cytomel, the Mayo Clinic notes. Notify a physician of any medical conditions including adrenal disease, diabetes, heart disease, kidney disease, or clotting disorders prior to taking Cytomel. Oral contraception, certain antidepressants, insulin and oral anticoagulants can interact with Cytomel. Inform a doctor of all medications being taken before starting on Cytomel.
Warning
Use Cytomel exactly as prescribed by a physician. This medication should not be used in the treatment of obesity or as a weight loss tool for people with functioning thyroids.
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