The promotion thyroxin's synthesis, both unite, effect multiplication. 促进甲状腺素的合成，两者合一，效果倍增。
Conclusion Using full dosage thyroxin to treat the patients with pregnancy compllicated hypothyroidism could cut down the bad pregnancy outcome. 结论对于妊娠合并甲状腺功能减退患者及时给予足量甲状腺素补充治疗，可有效降低不良妊娠结局。
