Fluorometholone   中文名称: 氟米龙

氟米龙（25-100 nM；12 小时、24 小时）可激活结膜和角膜上皮细胞中的糖皮质激素受体，增加 MUC1、MUC4、MUC16 和 MUC19 基因的表达 [1]。

Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
No information is available on the ophthalmic use of fluorometholone during breastfeeding. Because absorption from the eye is limited, ophthalmic fluorometholone would not be expected to cause any adverse effects in breastfed infants. To substantially diminish the amount of drug that reaches the breastmilk after using eye drops, place pressure over the tear duct by the corner of the eye for 1 minute or more, then remove the excess solution with an absorbent tissue.
◉ Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
◉ Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.

[1]. Fluorometholone Modulates Gene Expression of Ocular Surface Mucins. Acta Ophthalmol. 2019 Dec;97(8):e1082-e1088.

Fluorometholone is a member of the class of glucocorticoids that is Delta(1)-progesterone substituted at positions 11beta and 17 by hydroxy groups, at position 6alpha by a methyl group and at position 9 by a fluoro group. Used for the treatment of corticosteroid-responsive inflammation of the palpebral and bulbar conjunctiva, cornea and anterior segment of the globe. It has a role as an anti-inflammatory drug. It is a fluorinated steroid, an 11beta-hydroxy steroid, a 20-oxo steroid, a 3-oxo-Delta(1),Delta(4)-steroid, a glucocorticoid, a 17alpha-hydroxy steroid and a tertiary alpha-hydroxy ketone. It is functionally related to a Delta(1)-progesterone.
A glucocorticoid employed, usually as eye drops, in the treatment of allergic and inflammatory conditions of the eye. It has also been used topically in the treatment of various skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p732)
Fluorometholone is a Corticosteroid. The mechanism of action of fluorometholone is as a Corticosteroid Hormone Receptor Agonist.
Fluorometholone is a synthetic glucocorticoid with anti-inflammatory and anti-allergic properties. Fluorometholone exerts its effects by interacting with cytoplasmic glucocorticoid receptors and subsequently activates glucocorticoid receptor mediated gene expression. The synthesis of certain anti-inflammatory proteins is induced while the synthesis of certain inflammatory mediators is inhibited. As a result, there is an overall reduction in chronic inflammation and autoimmune reactions.
A glucocorticoid employed, usually as eye drops, in the treatment of allergic and inflammatory conditions of the eye. It has also been used topically in the treatment of various skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p732)
See also: Fluorometholone Acetate (active moiety of); Fluorometholone; sulfacetamide sodium (component of).

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Drug Indication
For the ophthalmic treatment of corticosteroid-responsive inflammation of the palpebral and bulbar conjunctiva, cornea and anterior segment of the globe.
FDA Label

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Mechanism of Action
There is no generally accepted explanation for the mechanism of action of ocular corticosteroids. However, corticosteroids are thought to act by the induction of phospholipase A2 inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes by inhibiting the release of their common precursor, arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A2. Their primary target is the cytosolic glucocorticoid receptor. After binding the receptor the newly formed receptor-ligand complex translocates itself into the cell nucleus, where it binds to many glucocorticoid response elements (GRE) in the promoter region of the target genes. The DNA bound receptor then interacts with basic transcription factors, causing the increase in expression of specific target genes.

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Pharmacodynamics
Corticosteroids such as fluorometholone inhibit the inflammatory response to a variety of inciting agents and probably delay or slow healing. They inhibit the edema, fibrin deposition, capillary dilation, leukocyte migration, capillary proliferation, fibroblast proliferation, deposition of collagen, and scar formation associated with inflammation.

C22H29FO4

376.47

376.204

426-13-1

Fluorometholone (Standard);426-13-1

9878

White to off-white solid powder

1.3±0.1 g/cm3

527.1±50.0 °C at 760 mmHg

292 - 303ºC

272.6±30.1 °C

0.0±3.1 mmHg at 25°C

1.574

2.02

74.6

2

5

1

27

787

8

C[C@H]1C[C@H]2[C@@H]3CC[C@@]([C@]3(C[C@@H]([C@@]2([C@@]4(C1=CC(=O)C=C4)C)F)O)C)(C(=O)C)O

FAOZLTXFLGPHNG-KNAQIMQKSA-N

InChI=1S/C22H29FO4/c1-12-9-17-15-6-8-21(27,13(2)24)20(15,4)11-18(26)22(17,23)19(3)7-5-14(25)10-16(12)19/h5,7,10,12,15,17-18,26-27H,6,8-9,11H2,1-4H3/t12-,15-,17-,18-,19-,20-,21-,22-/m0/s1

Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-6-methyl-, (6alpha,11beta)-

NSC 33001 NSC-33001 NSC33001

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

注意： 请将本产品存放在密封且受保护的环境中（例如氮气保护），避免吸湿/受潮和光照。

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

DMSO : ~50 mg/mL (~132.82 mM)

配方 1 中的溶解度: ≥ 2.5 mg/mL (6.64 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将100 μL 25.0 mg/mL 澄清 DMSO 储备液加入900 μL 玉米油中，混合均匀。

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请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。