Cytomel

Common Name: liothyronine

How does Cytomel work?

Thyroid replacement therapy such as liothyronine is used when the thyroid gland does not secrete enough thyroid hormone (hypothyroidism). Thyroid hormone is necessary for increasing the metabolic rate of body tissues. Liothyronine works quickly to restore the normal function of tissues and organs and must be taken on a daily basis to be effective. Replacement thyroid hormone therapy usually needs to be taken for life. Your doctor may choose to use a medication for conditions other than the ones listed in these drug information articles. If you're unsure why you are taking this medication, contact your doctor.

How should I use Cytomel?

Your doctor will decide on your dose of liothyronine based on results of laboratory tests that determine the amount of thyroid hormone in your blood. Do not change the way you take this medication without consulting your doctor. This medication should be taken on an empty stomach, usually once daily before breakfast. Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones given here, do not change the way that you are taking the medication without consulting your doctor. If you miss a dose, take it as soon as you remember it. If it is almost time for the next dose, skip the missed dose and carry on with your usual dosing schedule. Call your doctor if you miss two doses or more in a row. Do not double doses. Store this medication at room temperature away from sunlight and moisture.

What form(s) does Cytomel come in?

Cytomel® is available in strengths of 5 µg and 25 µg. 5 µg: Each round, flat, bevelled-edged, white tablet, engraved "JMI" on one side and "D14" on the other, contains liothyronine 5 µg. Sodium: <1 mmol (0.00018 mg). 25 µg: Each round, flat, bevelled-edged, white, scored tablet, engraved "JMI D16", contains liothyronine 25 µg. Sodium: <1 mmol (0.0009 mg). Nonmedicinal ingredients: sucrose. This medication does not contain gluten, lactose, parabens, sulfites, or tartrazine.

What should I NOT take with Cytomel?

Liothyronine should not be taken by anyone with: certain uncorrected problems of the adrenal glands untreated thyrotoxicosis (too much thyroid hormone in the blood) an allergy to liothyronine or to any of the ingredients of the medication

Are there any other precautions or warnings for Cytomel?

Diabetes: Liothyronine may cause an increase in the requirements for insulin or anti-diabetes medications for people with diabetes, since this medication raises blood sugar levels. Monitor your blood glucose more closely when starting or changing doses of this medication. Heart disease: When starting liothyronine, people with heart disease should use caution, as it may cause the heart to work harder than it has been used to. Medical conditions: Before using liothyronine, tell your doctor if you have any of the following: heart problems diabetes adrenal gland problems allergies Pregnancy: This medication is safe to use during pregnancy. Breast-feeding: As small amounts of thyroid hormone pass into breast milk, inform your doctor if you are breast-feeding or intending to breast-feed while taking liothyronine.