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Clemastine fumarate (HS-592 fumarate, Meclastine fumarate)，又称富马酸氯马斯汀，是二苯甲醚类组胺H1受体选择性拮抗剂，IC₅₀为3 nM，通过与组胺竞争结合H1受体阻止组胺作用于靶细胞，临床上常用于治疗过敏性皮肤病、过敏性鼻炎等过敏性疾病。

参考文献

[1] Seifert R, et al. Histamine increases cytosolic Ca2+ in dibutyryl-cAMP-differentiated HL-60 cells via H1 receptors and is an incomplete secretagogue. Mol Pharmacol. 1992 Aug;42(2):227-34.

[2] Nair MP, et al. Effect of histamine and histamine antagonists on natural and antibody-dependent cellular cytotoxicity of human lymphocytes in vitro. Cell Immunol. 1983 Oct 1;81(1):45-60.

[3] Blazsó G, et al. Evaluation of the anti-oedematous effects of some H1-receptor antagonists and methysergide in rats. Pharmacol Res. 1997 Jan;35(1):65-71.

冰袋运输。粉末直接保存于-25~-15℃，有效期3年。建议分装后-25~-15℃干燥保存，避免反复冻融。