The recommended starting Cytomel dosage for treating mild hypothyroidism is 25 mcg once daily. Your healthcare provider will increase your dose up to a maximum of 75 mcg per day. For treating a goiter, the usual recommended dose of Cytomel is 5 mcg once daily. Your healthcare provider will gradually increase your dosage as needed, usually up to 75 mcg daily.
The dose of Cytomel® (liothyronine sodium) your healthcare provider recommends will vary, depending on a number of factors, including:
- The medical condition being treated
- Other medications you may be taking
- How you respond to Cytomel
- Other medical conditions you may have.
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
Dose of Cytomel for Low ThyroidFor most cases of mild underactive thyroid (hypothyroidism), the recommended starting dose is Cytomel 25 mcg once daily. Your healthcare provider may increase your dose by up to 25 mcg every one to two weeks. Most people end up taking a Cytomel dosage of 25 to 75 mcg a day.
For treating myxedema (a certain type of hypothyroidism), the recommended starting dose of Cytomel is 5 mcg once daily. Your healthcare provider may increase your dose by 5 or 10 mcg every one to two weeks as necessary until a dose of 25 mcg is reached. After that, your healthcare provider may increase your dose by 5 to 25 mcg every one or two weeks. Most people with myxedema end up taking a Cytomel dosage of 50 to 100 mcg a day. For myxedema coma (a more serious form of the disease), an injectable form of liothyronine (Triostat®) is usually preferred.
For infants with congenital hypothyroidism, the recommended starting Cytomel dose is 5 mcg once daily. Your child's healthcare provider may increase the dose by 5 mcg every three or four days as necessary. The dose will need to be increased as your child grows; most children age three and older need a typical adult dosage.