| 规格 | 价格 | 库存 | 数量 |
|---|---|---|---|
| 50mg |
|
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| 100mg |
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| 250mg |
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| Other Sizes |
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| 药代性质 (ADME/PK) |
Absorption, Distribution and Excretion
Bilastine has a Tmax of 1.13 h. The absolute bioavailability is 61%. No accumulation observed with daily dosing of 20-100 mg after 14 days. Cmax decreased by 25 % and 33% when taken with a low fat and high fat meal compared to fasted state. Administration with grapefruit juice decreased Cmax by 30%. Bilastine is mainly excreted in the feces (66.5%) with some excreted in the urine (28.3%). Nearly all is excreted as the parent compound. Bilastine has a total clearance is 9.20 L/h and a renal clearance of 8.7 L/h. Metabolism / Metabolites Bilastine does not interact with the cytochrome P450 system and does not undergo significant metabolism in humans. Biological Half-Life The mean half life of elimination is 14.5h. |
|---|---|
| 毒性/毒理 (Toxicokinetics/TK) |
Protein Binding
Bilastine is 84-90% bound to human plasma proteins. |
| 参考文献 |
|
| 其他信息 |
Bilastine is a member of benzimidazoles.
Bilastine is a novel new-generation antihistamine that is highly selective for the H1 histamine receptor, has a rapid onset and prolonged duration of action. Drug Indication For symptomatic relief of nasal and non-nasal symptoms of seasonal rhinitis in patients 12 years of age and older and for symptomatic relief in chronic spontaneous urticaria in patients 18 years of age and older. FDA Label Treatment of allergic conjunctivitis Treatment of acute type I hypersensitivity reactions Treatment of allergic rhinoconjunctivitis, Treatment of urticaria Treatment of urticaria, Treatment of allergic rhinoconjunctivitis Mechanism of Action Bilastine is a selective histamine H1 receptor antagonist (Ki = 64nM). During allergic response mast cells undergo degranulation which releases histamine and other subastances. By binding to and preventing activation of the H1 receptor, bilastine reduces the development of allergic symptoms due to the release of histamine from mast cells. Pharmacodynamics Bilastine is an antiallergenic and acts to reduce allergic symptoms such as nasal congestion and urticaria. |
| 分子式 |
C28H37N3O3
|
|---|---|
| 分子量 |
463.6117
|
| 精确质量 |
463.283
|
| 元素分析 |
C, 72.54; H, 8.04; N, 9.06; O, 10.35
|
| CAS号 |
202189-78-4
|
| 相关CAS号 |
Bilastine-d6;1215358-58-9
|
| PubChem CID |
185460
|
| 外观&性状 |
White to off-white solid powder
|
| 密度 |
1.2±0.1 g/cm3
|
| 沸点 |
639.1±55.0 °C at 760 mmHg
|
| 熔点 |
202 °C
|
| 闪点 |
340.3±31.5 °C
|
| 蒸汽压 |
0.0±2.0 mmHg at 25°C
|
| 折射率 |
1.594
|
| LogP |
5.06
|
| tPSA |
67.59
|
| 氢键供体(HBD)数目 |
1
|
| 氢键受体(HBA)数目 |
5
|
| 可旋转键数目(RBC) |
10
|
| 重原子数目 |
34
|
| 分子复杂度/Complexity |
641
|
| 定义原子立体中心数目 |
0
|
| SMILES |
O(C([H])([H])C([H])([H])[H])C([H])([H])C([H])([H])N1C2=C([H])C([H])=C([H])C([H])=C2N=C1C1([H])C([H])([H])C([H])([H])N(C([H])([H])C([H])([H])C2C([H])=C([H])C(=C([H])C=2[H])C(C(=O)O[H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])C1([H])[H]
|
| InChi Key |
ACCMWZWAEFYUGZ-UHFFFAOYSA-N
|
| InChi Code |
InChI=1S/C28H37N3O3/c1-4-34-20-19-31-25-8-6-5-7-24(25)29-26(31)22-14-17-30(18-15-22)16-13-21-9-11-23(12-10-21)28(2,3)27(32)33/h5-12,22H,4,13-20H2,1-3H3,(H,32,33)
|
| 化学名 |
2-[4-[2-[4-[1-(2-ethoxyethyl)benzimidazol-2-yl]piperidin-1-yl]ethyl]phenyl]-2-methylpropanoic acid
|
| 别名 |
Bilastine trade name Bilaxten
|
| HS Tariff Code |
2934.99.9001
|
| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
| 溶解度 (体外实验) |
DMSO : ~10 mg/mL (~21.57 mM)
|
|---|---|
| 溶解度 (体内实验) |
配方 1 中的溶解度: 2 mg/mL (4.31 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加，逐一添加), 悬浮液；超声助溶。
例如，若需制备1 mL的工作液，可将100 μL 20.0 mg/mL澄清DMSO储备液加入400 μL PEG300中，混匀；然后向上述溶液中加入50 μL Tween-80，混匀；加入450 μL生理盐水定容至1 mL。 *生理盐水的制备：将 0.9 g 氯化钠溶解在 100 mL ddH₂O中，得到澄清溶液。 配方 2 中的溶解度: ≥ 2 mg/mL (4.31 mM) (饱和度未知) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (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 20.0mg/mL澄清的DMSO储备液加入到900μL 20％SBE-β-CD生理盐水中，混匀。 *20% SBE-β-CD 生理盐水溶液的制备（4°C，1 周）：将 2 g SBE-β-CD 溶解于 10 mL 生理盐水中，得到澄清溶液。 View More
配方 3 中的溶解度: ≥ 2 mg/mL (4.31 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。 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。 |
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.1570 mL | 10.7849 mL | 21.5699 mL | |
| 5 mM | 0.4314 mL | 2.1570 mL | 4.3140 mL | |
| 10 mM | 0.2157 mL | 1.0785 mL | 2.1570 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液)：对于大多数产品，InvivoChem推荐用DMSO配置母液 (比如：5、10、20mM或者10、20、50 mg/mL浓度），个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息，或者很难将产品溶解在溶液中，请联系我们;
3、建议使用下列计算器进行相关计算（摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等）;
4、母液配好之后，将其分装到常规用量，并储存在-20°C或-80°C，尽量减少反复冻融循环。
计算结果:
工作液浓度： mg/mL；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度，请首先与我们联系。
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL ddH2O，混匀澄清。
(1) 请确保溶液澄清之后，再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶；
(2) 一定要按顺序加入溶剂 (助溶剂) 。
Quality of Life in Patients With Allergic Rhinitis: Clinical Trial With Bilastine or Loratadine
CTID: NCT02513290
Phase: Phase 4 Status: Completed
Date: 2018-05-07
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