Lixivaptan (VPA-985, WAY-VPA 985) 是具有口服活性，选择性的 vasopressin receptor V2 拮抗剂，对人和大鼠的 IC₅₀ 值分别为1.2 和 2.3 nM。

Lixivaptan (VPA-985, WAY-VPA 985) is an orally active and selective vasopressin receptor V2 antagonist, with IC 50 values of 1.2 and 2.3 nM for human and rat V2, respectively.

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IC50: 1.2 nM (human V2), 2.3 nM (rat V2)

Lixivaptan displays competitive antagonist activity at V2 receptors. has not independently confirmed the accuracy of these methods. They are for reference only.

In conscious dogs, water-loaded with 30 mL/kg (po) and arginine vasopressin (AVP)-treated (0.4 μg/kg in oil, sc), lixivaptan (1, 3, and 10 mg/kg po) increases U vol over the AVP-treated vehicle group by 438, 1018, and 1133%, respectively, while U osm decreases from 1222 mOsm/kg (water-loaded and AVP treated vehicle) to 307, 221, and 175 mOsm/kg, respectively. In homozygous Brattleboro rats lacking AVP, lixivaptan at 10 mg/kg po (i.e., 10 times the dose producing V2 antagonist activity) b.i.d. for 5 days, shows a sustained antagonist action without evidence of agonist effects. In a randomized double-blind placebo-controlled ascending single dose study, patients (deprived of fluids overnight before dosing) are dosed orally with 30, 75, or 150 mg of lixivaptan. All three doses increase urine flow and serum sodium concentrations and produced significant dose-re

Room temperature in continental US; may vary elsewhere.

4°C, protect from light In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

[1]. Albright JD, et al. 5-Fluoro-2-methyl-N-[4-(5H-pyrrolo[2,1-c]-[1, 4]benzodiazepin-10(11H)-ylcarbonyl)-3-chlorophenyl]benzamide (VPA-985): an orally active arginine vasopressin antagonist with selectivity for V2 receptors. J Med Chem. 1998 Jul 2;41(14):244
[2]. Ghali JK, et al. Lixivaptan, a non-peptide vasopressin V2 receptor antagonist for the potential oral treatment of hyponatremia. IDrugs. 2010 Nov;13(11):782-92.

In Vitro: DMSO : ≥ 150 mg/mL (316.50 mM)配制储备液