Cytomel (Liothyronine)




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What is Cytomel Used For?

Cytomel (Liothyronine)

Cytomel is an artificial thyroid hormone that is given to a patient whose thyroid gland is not producing enough thyroid hormones. The thyroid gland plays the important role in regulating the body’s energy and metabolism. In growing children, it plays an essential role in their growth and learning process. Cytomel is given to patients when there is under production of the thyroid hormones (hypothyroidism).

Underproduction usually results from injury to the thyroid gland due to medication, radiation, or surgical removal of the gland. Symptoms of hypothyroidism include tiredness, muscle aches, slow heartbeat, weight gain, dry skin, and sensitivity to cold. Cytomel acts by replacing or providing more thyroid hormone, which is otherwise produced normally by our bodies.

Cytomel is also used to treat or prevent goiter (enlarged thyroid gland) and other thyroid disorders like thyroid cancer. Cytomel should not be used for obesity or weight problems.

You can buy Cytomel online from Canada Pharmacy.


Cytomel should be used as prescribed by your doctor. The usual dose is one tablet daily. Preferably, it should be taken at the same time each day to maintain constant thyroid levels. Your doctor may occasionally alter your dose to get the best results.

To be sure that Cytomel is improving your condition, blood tests to test thyroid levels have to be often done. If your physician switches you to Cytomel from some other thyroid medication, stop the other treatment before starting with Cytomel.

Thyroid replacement treatment is usually taken for life.


The active ingredient is Liothyronine sodium (it comes in 3 strengths):

  • Liothyronine 5mcg
  • Liothyronine 25mcg
  • Liothyronine 50mcg


Before taking Cytomel, tell your doctor if you are suffering from any of the following conditions:

  • Allergy to liothyronine
  • Decreased adrenal gland function
  • Coronary artery disease
  • Heart disease, angina
  • Congestive heart failure
  • High blood pressure
  • Any type of diabetes
  • Pregnancy
  • Breastfeeding

Side Effects

Consult your doctor if following side effects appear with Cytomel.

  • Allergic reactions like hives, difficulty in breathing, swelling of the face, lips, tongue, and throat
  • Temporary hair loss, especially in children
  • Headache
  • Mental/mood changes
  • Increased sweating
  • Sensitivity to heat
  • Diarrhea
  • Menstrual changes
  • Chest pain
  • Fast, pounding, or irregular heartbeat
  • Swelling of ankles, feet, or face
  • Severe dizziness
  • Trouble breathing