Dihydrotachysterol的维生素D类似物，临床上主要用于治疗低钙血症（血钙水平异常降低）及甲状旁腺功能减退症（甲状旁腺激素分泌不足引起的钙代谢紊乱）。其作用机制与维生素D相似，可促进肠道对钙的吸收及肾脏对钙的重吸收，从而有效提升血清钙浓度。

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-25~-15℃避光保存，有效期3年。

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[2] Peterson ME, James KM, Wallace M, Timothy SD, Joseph RJ. Idiopathic hypoparathyroidism in five cats. J Vet Intern Med. 1991 Jan-Feb;5(1):47-51. doi: 10.1111/j.1939-1676.1991.tb00930.x. PMID: 2020014.