Cytomel
Cytomel[edit | edit source]
Cytomel is the brand name for the synthetic form of the thyroid hormone triiodothyronine (T3). It is used in the treatment of hypothyroidism and certain types of thyroid cancer. Cytomel is known for its rapid onset of action and is often used when a quick response is desired.
Pharmacology[edit | edit source]
Cytomel contains liothyronine sodium, a synthetic form of the naturally occurring thyroid hormone T3. Unlike levothyroxine, which is a synthetic form of thyroxine (T4), liothyronine is more potent and acts more quickly in the body. T3 is the active form of thyroid hormone, which regulates metabolism, energy generation, and many other physiological processes.
Indications[edit | edit source]
Cytomel is primarily indicated for:
- Treatment of hypothyroidism, particularly in cases where rapid onset of action is required.
- Treatment of myxedema coma, a severe form of hypothyroidism.
- As an adjunct to surgery and radioactive iodine therapy in the management of certain types of thyroid cancer.
Dosage and Administration[edit | edit source]
Cytomel is available in tablet form and is typically administered orally. The dosage of Cytomel must be carefully adjusted according to the individual patient's response and laboratory findings. It is important to monitor thyroid function tests regularly to ensure the correct dosage.
Side Effects[edit | edit source]
Common side effects of Cytomel may include:
- Increased heart rate
- Nervousness
- Insomnia
- Weight loss
- Tremors
Severe side effects can include:
- Chest pain
- Shortness of breath
- Irregular heartbeats
Contraindications[edit | edit source]
Cytomel is contraindicated in patients with:
- Untreated thyrotoxicosis
- Uncorrected adrenal insufficiency
Interactions[edit | edit source]
Cytomel can interact with several medications, including:
- Anticoagulants
- Antidiabetic drugs
- Digitalis glycosides
Monitoring[edit | edit source]
Patients on Cytomel therapy should have regular monitoring of thyroid function tests, including serum T3, T4, and TSH levels, to ensure appropriate dosing and to avoid over- or under-treatment.
See Also[edit | edit source]
References[edit | edit source]
- "Liothyronine Sodium." DailyMed. U.S. National Library of Medicine.
- "Thyroid Hormone Treatment." American Thyroid Association.
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