

CYTOMEL
Liothyronine Sodium
Strength




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Potency
Appearance
Packing
Dosage
25 mcg/tablet
pink tablet in round shape
100 tablets, 2 blister pack of 50 tablets each, packed in sealed box
25-75 mcg/day
Instruction
What is Cytomel ?
Liothyronine sodium is a synthetic prescription form of the thyroid hormone triiodothyronine (T3), used primarily to treat hypothyroidism.
How it Works
- Active Hormone Replacement: It replaces or supplements natural T3, which is the most biologically active form of thyroid hormone produced by the body.
- Metabolic Regulation: It binds to nuclear receptors in cells to increase basal metabolic rate, oxygen consumption, and protein synthesis.
- Rapid Action: It acts faster and is more potent than levothyroxine (T4).
Primery Uses
- Hypothyroidism: Treats cases where the thyroid gland fails to produce adequate hormones, or when patients do not respond well to T4-only treatments.
- TSH Suppression: Used alongside surgery or radioactive iodine to suppress thyroid-stimulating hormone in the management of thyroid cancer.
- Diagnostic Testing: Utilized in thyroid suppression tests to help diagnose specific thyroid disorders.
Administration and Side Effects
- Dosage: Taken orally as a tablet, typically once daily on an empty stomach. Dosing must be carefully individualized by a doctor.
- Side Effects: Common or mild effects include temporary hair loss. Serious effects from high doses or overdose include rapid heartbeat, chest pain, and severe nervousness.

