Answer
Jan 08, 2026 - 09:17 AM
T3 (triiodothyronine) is not routinely given in hypothyroidism because it has a shorter half-life and can cause rapid fluctuations in hormone levels, leading to symptoms of hyperthyroidism. Instead, T4 (levothyroxine) is preferred, as it provides a more stable and steady hormone level and is converted to T3 in the body as needed.
