CYTOMEL

LOE Approaching

liothyronine sodium

NDAORALTABLETPriority Review
Approved
May 1956
Lifecycle
LOE Approaching
Competitive Pressure
30/100

Mechanism of Action

synthesis. Triiodothyronine (T3) and L-thyroxine (T4) diffuse into the cell nucleus and bind to thyroid receptor proteins attached to DNA. This hormone nuclear receptor complex activates gene transcription and synthesis of messenger RNA and cytoplasmic proteins. The physiological actions of thyroid…