L-Thyroxine powder is a synthetically manufactured thyroid hormone. Its effect is similar to that of natural L-thyroxin (L-T4) in the thyroid gland. L-thyroxin is one of two hormones which is produced in the thyroid. The other one is L-triiodthyronine (L-T3, see Cytomel). L-thyroxin is clearly the weaker of the two hormones.
ຜົງ L-Thyroxine ເປັນຢາຮໍໂມນ thyroid ທີ່ຜະລິດ synthetically. ຜົນກະທົບຂອງມັນແມ່ນຄ້າຍຄືກັບຂອງ L-thyroxin ທໍາມະຊາດ (L-T4) ໃນຕ່ອມ thyroid gland. L-thyroxin ແມ່ນຫນຶ່ງໃນສອງຮໍໂມນທີ່ຖືກຜະລິດຢູ່ໃນ thyroid. ອີກອັນຫນຶ່ງແມ່ນ L-triiodthyronine (L-T3, ເບິ່ງ Cytomel). L-thyroxin ແມ່ນໄດ້ຢ່າງລະອຽດອ່ອນຂອງສອງຮໍໂມນ.