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What is Triiodothyronine (T3) as compared to T4 : and explain in detail?
T3 is the main active thyroid hormone. It is more potent (less plasma protein bound) and faster acting than T4. How­ever, short duration of action limits its use for the treatment of hypothyroidism (requires lifelong treatment).
T3 is indicated for the treatment of myxedema coma.