Molecular Weight(MW): 447.83
Hydroxyzine is a histamine H1-receptor antagonist, inhibits binding of [3H]pyrilamine/[3H]desloratadine to human histamine H1 receptor with IC50 of 10 nM/19 nM.
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a, Quantification of sterol levels in OPCs (oligodendrocyte progenitor cells) treated with the indicated molecules at 2 μM. b, Quantification of sterol levels in OPCs treated with the indicated previously reported enhancers of oligodendrocyte formation (n = 2 wells per condition except DMSO, n = 6). Representative of two independent experiments; for concentrations, see Extended Data Fig. 6g. c, Quantification of EBP enzymatic activity in a biochemical assay. All treatments 10 μM. n = 3 independent enzymatic assays, except DMSO, n = 5. Bars indicate mean; error bars indicate s.d. Sigma H127, p-fluorohexahydro-sila-difenidol.
Nature, 2018, 560(7718):372-376. Hydroxyzine 2HCl purchased from Selleck.
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Choose Selective Histamine Receptor Inhibitors
|Description||Hydroxyzine is a histamine H1-receptor antagonist, inhibits binding of [3H]pyrilamine/[3H]desloratadine to human histamine H1 receptor with IC50 of 10 nM/19 nM.|
Hydroxyzine inhibits carbachol (10 μM)-induced serotonin release by 34% at 10 μM, by 25% 1 μM and by 17% 0.1 μM in pretreated bladder slices for 60 min.  Hydroxyzine (0.1 mM) treatment inhibits the progression and severity of EAE by 50% and the extent of mast cell degranulation by 70% in Lewis rats with allergic encephalomyelitis (EAE).  Hydroxyzine (500 µM) significantly increases transport of etoposide to the serosal site in the jejunal everted sacs. Hydroxyzine significantly reduces the efflux and approximately 2.4 µg/mL of etoposide in the jejunum and ileum. Hydroxyzine (0.2 μg/mL) significantly enhances the efflux of RH123 to the lumen. 
|In vivo||Hydroxyzine (500 μM) significantly decreases the steady-state etoposide concentration 2-fold, where the steady-state concentration reached about 0.055 μM/mL in Sprague-Dawley rats.  Hydroxyzine (12.5 mg/kg, 25 mg/kg and 50 mg/kg i.p.) shows little direct analgesic activity but markedly potentiates only the effect of morphine on the vocalization after-discharge which represents the affective component of pain in rats. Hydroxyzine (50 mg/kg i.p.) potentiates morphine on the tail-flick test, while Hydroxyzine (12.5 mg/kg i.p.) decreases morphine antinociception in rats. |
-  Anthes JC, et al. Eur J Pharmacol, 2002, 449(3), 229-237.
-  Minogiannis P, et al. Int J Immunopharmacol, 1998, 20(10), 553-563.
-  Dimitriadou V, et al. Int J Immunopharmacol, 2000, 22(9), 673-684.
|In vitro||DMSO||90 mg/mL (200.96 mM)|
|Water||90 mg/mL (200.96 mM)|
|Ethanol||15 mg/mL (33.49 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
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