Etoricoxib (MK-0663) is a non steroidal anti-inflammatory agent, acting as a selective and orally active COX-2 inhibitor, with IC₅₀s of 1.1 μM and 116 μM for COX-2 and COX-1 in human whole blood.

Etoricoxib (MK-0663) is a selective and orally active COX-2 inhibitor, with IC₅₀s of 1.1 μM, 116 μM and 5 μM for COX-2, COX-1 in human whole blood and purified human COX-2, respectively. Etoricoxib (MK-0663) shows inhibitory effect on PGE2 production by CHO (COX-2) cells (IC₅₀, 79 nM), on purified human COX-2 with detergent (IC₅₀, 4.1 μM), and on purified PGE2 production by U937 microsomes (low substrate; IC₅₀, 12.1 μM). However, Etoricoxib (MK-0663) has little activity against COX-1 with a K_i of 167 μM^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Etoricoxib (MK-0663) (0.1-30 mg/kg, p.o.) dose-dependently inhibits carrageenan-induced paw edema, carrageenan-induced paw hyperalgesia, and endotoxin-induced pyresis in rats. Etoricoxib (≥10 mg/kg) completely reverses hyperalgesia response in the rat hyperalgesia model. Etoricoxib (MK-0663) (200 mg/kg/day) has no effect on urinary ⁵¹Cr excretion in rats, and nor in monkeys at 100 mg/kg/day^[1]. Etoricoxib (MK-0663) (50 and 100 mg/kg) potently increases the malondialdehyde (MDA) and myeloperoxidase (MPO) levels, and decreases the total glutathione (tGSH) and glutathione reductase (GSHRd) levels in rats. Etoricoxib (MK-0663) (100 mg/kg) significantly inhibits the decrease of NO in rats^[2]. Etoricoxib (MK-0663) (0.64 mg/kg, p.o.) reduces the features such as multiple plaque lesions, hyperplasia and dysplasia induced by 1,2-dimethylhydrazine dihydrochloride (DMH) in rats^[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

358.84

C₁₈H₁₅ClN₂O₂S

202409-33-4

依托考昔

Room temperature in continental US; may vary elsewhere.

DMSO : 100 mg/mL (278.68 mM; Need ultrasonic)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (6.97 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.97 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (6.97 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.97 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (6.97 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.97 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Riendeau D, et al.Etoricoxib (MK-0663): preclinical profile and comparison with other agents that selectively inhibit cyclooxygenase-2. J Pharmacol Exp Ther. 2001 Feb;296(2):558-66.

  [2]. Kunak CS, et al. The Effect of Etoricoxib on Hepatic Ischemia-Reperfusion Injury in Rats. Oxid Med Cell Longev. 2015;2015:598162.

  [3]. Tanwar L, et al. Anti-proliferative and apoptotic effects of etoricoxib, a selective COX-2 inhibitor, on 1,2-dimethylhydrazine dihydrochloride-induced colon carcinogenesis. Asian Pac J Cancer Prev. 2010;11(5):1329-33.

Rats^[3]
Animals are assorted into the following groups with four to six animals in each group: Control Group, Animals are administrated the vehicle (1mM EDTA-saline subcutaneously) in weekly injection and 0.5% carboxymethyl cellulose per oral daily; 1,2-dimethylhydrazine dihydrochloride (DMH) Group, animals are administrated with DMH weekly at a dose of 30 mg/kg body weight subcutaneously, DMH is freshly prepared in 1mM EDTA-saline, pH adjusted to 7.0 using dilute NaOH solution; DMH + Etoricoxib Group, Etoricoxib (MK-0663) is given daily per oral at its therapeutic anti-inflammatory dose (ED₅₀ for rats, 0.64 mg/kg body weight) to the animals along with the weekly administration of DMH; and Etoricoxib Group: Etoricoxib (MK-0663) alone is administered orally daily (0.64 mg/kg body weight). After six weeks, animals are kept on overnight fasting with drinking water ad libitum and sacrificed the next day. The animal body weights in all the groups are recorded once in a week till the termination.^[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Riendeau D, et al.Etoricoxib (MK-0663): preclinical profile and comparison with other agents that selectively inhibit cyclooxygenase-2. J Pharmacol Exp Ther. 2001 Feb;296(2):558-66.

  [2]. Kunak CS, et al. The Effect of Etoricoxib on Hepatic Ischemia-Reperfusion Injury in Rats. Oxid Med Cell Longev. 2015;2015:598162.

  [3]. Tanwar L, et al. Anti-proliferative and apoptotic effects of etoricoxib, a selective COX-2 inhibitor, on 1,2-dimethylhydrazine dihydrochloride-induced colon carcinogenesis. Asian Pac J Cancer Prev. 2010;11(5):1329-33.