1. Signaling Pathways
  2. GPCR/G Protein
    Immunology/Inflammation
    Neuronal Signaling
  3. Histamine Receptor
  4. Histamine Receptor Inhibitors

Histamine Receptor Inhibitors

H1 Receptor

H2 Receptor

H3 Receptor

H4 Receptor

Histamine Receptor

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Histamine Receptor Inhibitors, Agonists, Antagonists & Modulators
Product Name H1 Receptor H2 Receptor H3 Receptor H4 Receptor Histamine Receptor Purity
Clemastine fumarate
H1 Receptor
        99.97%
Cimetidine        
Histamine Receptor, Ki: 0.6 μM
≥98.0%
Loratadine
H1 Receptor
        99.98%
Meclizine dihydrochloride
H1 Receptor
        99.95%
Cyclizine
H1 Receptor
        98.64%
Pheniramine maleate
H1 Receptor, IC50: 1.01 mM
        99.94%
Astemizole
H1 Receptor
        99.62%
Terfenadine
H1 Receptor
        99.91%
Desloratadine
H1 Receptor
        99.83%
Amitriptyline hydrochloride
H1 Receptor, IC50: 1.1 nM
 
H3 receptor, IC50: 1 μM
H4 receptor, IC50: 33.6 nM
  98.91%
Famotidine  
H2 Receptor
      99.68%
(S)-(+)-Dimethindene maleate
H1 Receptor, pA2: 7.48
        99.94%
Diphenhydramine hydrochloride
H1 Receptor
        99.98%
Fexofenadine hydrochloride
H1 Receptor
        99.86%
Perphenazine  
H2 Receptor, Ki: 132 nM
      99.95%
Doxepin Hydrochloride
H1 Receptor
        99.79%
Ketotifen fumarate
H1 Receptor
        99.92%
Ritanserin
H1 Receptor, IC50: 35 nM
        99.68%
Promethazine hydrochloride
H1 Receptor
        99.20%
JNJ-7777120      
H4 receptor
  99.85%
Ebastine
H1 Receptor
        99.67%
Cetirizine dihydrochloride
H1 Receptor
        99.53%
Pitolisant hydrochloride    
H3 receptor
    99.96%
Chlorpheniramine maleate
H1 Receptor
        99.90%
Mianserin hydrochloride
H1 Receptor
        99.87%
Mirtazapine
H1 Receptor, pKi: 9.3
        99.94%
Mepyramine maleate
H1 Receptor
        99.93%
Azelastine hydrochloride
H1 Receptor
        99.93%
Diphenhydramine
H1 Receptor
        99.08%
Clemizole hydrochloride
H1 Receptor
        99.99%
Ranitidine hydrochloride  
H2 Receptor
      99.88%
Hydroxyzine dihydrochloride
H1 Receptor
        99.81%
Rupatadine Fumarate
H1 Receptor, Ki: 0.1 μM
        98.77%
Chlorprothixene
Human H1 Receptor, Ki: 3.75 nM
        99.61%
GSK189254A    
H3 receptor
    98.59%
4-Methylhistamine dihydrochloride      
H4 receptor
  99.35%
Asenapine
H1 Receptor, pKi: 9.0
H2 Receptor, pKi: 8.2
      99.62%
Chlorprothixene hydrochloride
Human H1 Receptor, Ki: 3.75 nM
        99.91%
Bilastine
H1 Receptor
        99.91%
Hydroxyzine pamoate
H1 Receptor
        99.85%
Emedastine
H1 Receptor, Ki: 1.3 nM
H2 Receptor, Ki: 49067 nM
      98.01%
Thiethylperazine
H1 Receptor
        99.41%
Fexofenadine
H1 Receptor
        99.84%
Oxatomide
H1 Receptor
        99.56%
Levocetirizine dihydrochloride
H1 Receptor
        99.73%
Epinastine hydrochloride
H1 Receptor
        99.73%
Alcaftadine
H1 Receptor
H2 Receptor
      99.43%
Clobenpropit dihydrobromide  
H2 Receptor, pKi: 5.6
Human H3LR, pKi: 9.44
Rat H3LR, pKi: 9.75
H4 receptor, Ki: 13 nM
  98.99%
Levocetirizine
H1 Receptor
        99.41%
Dimenhydrinate
H1 Receptor
        99.89%
Tiotidine  
H2 Receptor, pA2: 7.3-7.8
H3 Receptor, pA2: 4.8
    99.28%
Betazole  
H2 Receptor
     
Betahistine
H1 Receptor
 
H3 receptor
    98.04%
Diphenylpyraline hydrochloride
H1 Receptor
        99.94%
Decloxizine dihydrochloride
H1 Receptor
        99.82%
(R)-(-)-α-Methylhistamine dihydrochloride    
H3 receptor, Kd: 50.3 nM
    99.62%
Nizatidine  
H2 Receptor
      99.68%
Betahistine dihydrochloride    
H3 Receptor
    99.82%
Triprolidine hydrochloride monohydrate
H1 Receptor
        99.92%
Bepotastine besilate
H1 Receptor
        99.77%
NP10679
H1 Receptor, IC50: 0.073 μM
H1 Receptor, Ki: 0.04 μM
        99.42%
Fenspiride hydrochloride
H1 Receptor
        99.11%
Chloropyramine hydrochloride
H1 Receptor
        99.73%
Brompheniramine maleate
H1 Receptor, Kd: 6.06 nM
        99.78%
Roxatidine  
H2 Receptor
      98.25%
JNJ-39758979      
Human H4 Receptor, Ki: 12.5 nM
Mouse H4 Receptor, Ki: 5.3 nM
Monkey H4 receptor, Ki: 25 nM
Rat H4 receptor, Ki: 188 nM
Guinea pig H4 receptor, Ki: 306 nM
  99.71%
Carebastine
H1 Receptor
        99.23%
Psoralenoside
H1 Receptor
        99.84%
Dimaprit dihydrochloride  
H2 Receptor
      99.91%
Thiethylperazine dimaleate
H1 Receptor
        99.72%
Toreforant      
H4 receptor, IC50: 8.4±2.2 nM
  99.82%
Roxatidine Acetate Hydrochloride  
H2 Receptor
      99.26%
ABT-239    
H3 receptor
    99.23%
Tripelennamine hydrochloride
H1 Receptor
        99.81%
Antihistamine-1
H1 Receptor
        99.45%
VUF10460      
H4 receptor
  99.28%
Izuforant      
Human H4 Receptor, IC50: 36 nM
  98.88%
JNJ10191584    
human H3 receptor, Ki: 14.1 μM
Human H4 Receptor, Ki: 26 nM
  99.95%
Niperotidine  
H2 Receptor
      98.49%
Betahistine mesylate
H1 Receptor
 
H3 receptor
    99.90%
Zaltidine  
H2 Receptor
      99.49%
Ranitidine  
H2 Receptor, IC50: 3.3 μM
     
INCB38579      
Human H4 Receptor, IC50: 4.8 nM
Mouse H4 Receptor, IC50: 42 nM
Rat H4 receptor, IC50: 21 nM
  99.97%
Levocabastine hydrochloride
H1 Receptor
        99.3%
Conessine    
H3 Receptor, Ki: 5.4 nM
rat H3 receptor, Ki: 25 nM
Guinea pig H3 Receptor, Ki: 6.0 nM
Dog H3 Receptor, Ki: 5.7 nM
    ≥98.0%
Doxylamine succinate
H1 Receptor
        99.76%
H4 Receptor antagonist 1      
H4 receptor, IC50: 19 nM
  99.66%
H3R antagonist 1 hydrochloride    
H3 receptor
    99.10%
Diphenhydramine-d5 hydrochloride
H1 Receptor
        ≥99.0%
Ketotifen-d3 fumarate
H1 Receptor
        99.23%
Irdabisant    
rat H3 receptor, Ki: 7.2 nM
human H3 receptor, Ki: 2 nM
    99.38%
UNC9994
H1 Receptor, Ki: 2.1 nM
        98.06%
Bavisant    
H3 receptor
   
Methapyrilene hydrochloride
H1 Receptor
        ≥99.0%
Rupatadine
H1 Receptor, Ki: 0.1 μM
       
Antazoline
H1 Receptor
        99.70%
Zolantidine dimaleate  
H2 Receptor
      99.88%
Peptide 401        
Histamine Receptor
98.26%
ST-1006      
H4 receptor, pKi: 7.94
  99.55%
Oxomemazine
H1 Receptor
        99.18%
Cetirizine-d4
H1 Receptor
        ≥98.0%
Imetit dihydrobromide    
H3 Receptor, Ki: 0.3 nM
H4 receptor, Ki: 2.7 nM
  ≥98.0%
Cetirizine Impurity C dihydrochloride
H1 Receptor
        99.95%
Cetirizine-d8
H1 Receptor
        98.37%
(R)-(+)-Dimethindene maleate
H1 Receptor, pA2: 7.7
        99.94%
Ketotifen
H1 Receptor
       
HTMT dimaleate
H1 Receptor
H2 Receptor
      99.55%
JZP-361
H1 Receptor, pA2: 6.81
        99.72%
JNJ-5207852    
H3 receptor, pKi: 8.9 (for rat)
H3 receptor, pKi: 9.24 (for human)
    ≥98.0%
Thonzylamine
H1 Receptor
       
Diphenylpyraline
H1 Receptor
        98.60%
Meclizine
H1 Receptor
       
Thioperamide maleate    
H3 Receptor
    98.26%
Cipralisant    
H3 receptor, pKi: 9.9
rat H3 receptor, Ki: 0.47 nM
    99.26%
Bavisant dihydrochloride hydrate    
H3 receptor
    99.26%
Hydroxyzine
H1 Receptor
        99.60%
SUN 1334H
H1 Receptor
       
MK-0249    
human H3 receptor, IC50: 1.7 nM
human H3 receptor, Ki: 6.8 nM
rat H3 receptor, Ki: 33 nM
rhesus H3 receptor, Ki: 4.3 nM
    99.53%
Dexbrompheniramine
H1 Receptor
        99.60%
Cimetidine hydrochloride  
H2 Receptor, Kd: .6 μM
     
Meclizine dihydrochloride monohydrate
H1 Receptor
       
H4R antagonist 1      
Human H4 Receptor, IC50: 27 nM
Mouse H4 Receptor, IC50: 290 nM
  98.37%
Loratadine-d4
H1 Receptor
       
Cimetidine-d3  
H2 Receptor
     
Levocetirizine-d4 dihydrochloride
H1 Receptor
       
Carebastine-d5 Methyl Ester
H1 Receptor
       
Bilastine-d6
H1 Receptor
       
Carebastine-d5
H1 Receptor
       
Diphenhydramine-d6 hydrochloride
H1 Receptor
        98.83%
Brompheniramine
H1 Receptor
       
Thonzylamine hydrochloride
H1 Receptor
       
Triprolidine hydrochloride
H1 Receptor
       
Cetirizine-d4 dihydrochloride
H1 Receptor
       
ROS 234 dioxalate  
H2 Receptor, pKi: 8.90 (Rat cerebral cortex H3-receptor)
     
JNJ10191584 maleate    
human H3 receptor, Ki: 14.1 μM
Human H4 Receptor, Ki: 26 nM
 
ICI 162846  
H2 Receptor
     
Desloratadine-d5
H1 Receptor
       
Levocabastine
H1 Receptor
       
Cipralisant maleate    
H3 receptor, pKi: 9.9
rat H3 receptor, Ki: 0.47 nM
    99.84%
Pirolate
H1 Receptor
       
JNJ 10181457 dihydrochloride    
H3 Receptor
   
ABT-288    
human H3 receptor, Ki: 1.9 nM
rat H3 receptor, Ki: 8.2 nM
   
JNJ-5207852 dihydrochloride    
H3 Receptor, pKi: 8.9 ( for rat)
H3 Receptor, pKi: 9.24 ( for human)
   
JNJ-39758979 dihydrochloride      
Human H4 Receptor, Ki: 12.5 nM
Mouse H4 Receptor, Ki: 5.3 nM
Monkey H4 receptor, Ki: 25 nM
Rat H4 receptor, Ki: 188 nM
Guinea pig H4 receptor, Ki: 306 nM
 
Ranitidine bismuth citrate  
H2 Receptor
     
Fexofenadine-d10 hydrochloride
H1 Receptor
       
Olopatadine
H1 Receptor
       
Carbinoxamine-d6 maleate
H1 Receptor
       
Vapitadine hydrochloride
Human H1 Receptor, Ki: 19 nM
       
Tripelennamine citrate
H1 Receptor
       
A-943931      
Human H4 Receptor, Ki: 4.6 nM
Rat H4 receptor, Ki: 3.8 nM
 
Betazole dihydrochloride  
H2 Receptor
     
Irdabisant hydrochloride    
rat H3 receptor, Ki: 7.2 nM
human H3 receptor, Ki: 2 nM
   
GSK239512    
H3 receptor
   
Hydroxyzine-d8 dihydrochloride
H1 Receptor
       
Proxyfan    
Rat H3LR, Ki: 2.9 nM
Human H3LR, Ki: 2.7 nM
   
JNJ-28583867    
H3 receptor, Ki: 10.6 nM
   
Mirtazapine-d4
H1 Receptor
       
Betahistine-13C,d3 dihydrochloride
H1 Receptor
       
Cyclizine hydrochloride
H1 Receptor
       
Cyclizine dihydrochloride
H1 Receptor
       
(R)-(-)-α-Methylhistamine dihydrobromide    
H3 Receptor, Kd: 50.3 nM
   
Rupatadine-d4 fumarate
H1 Receptor
       
Oxmetidine  
H2 Receptor
     
SUN-1334H free base
H1 Receptor, IC50: 20.3 nM
       
Fenspiride-d5
H1 Receptor
       
Cyclizine lactate
H1 Receptor
       
Proxyfan Oxalate    
Rat H3LR, Ki: 2.9 nM
Human H3LR, Ki: 2.7 nM
   
Hydroxyzine-d4 dihydrochloride
H1 Receptor
        ≥98.0%
Asenapine citrate
H1 Receptor, pKi: 9.0
H2 Receptor, pKi: 8.2
     
Pheniramine
H1 Receptor, IC50: 1.01 mM
       
DA 4626  
H2 Receptor
     
Fenspiride
H1 Receptor
       
Clobenpropit    
H3 receptor
   
Efletirizine
H1 Receptor
       
Chloropyramine
H1 Receptor
       
HY-078020
H1 Receptor, IC50: 24.12 nM
       
Doxylamine
H1 Receptor
       
Linetastine        
Histamine Receptor
Cetirizine-d8 dihydrochloride
H1 Receptor
       
Emedastine difumarate
H1 Receptor, Ki: 1.3 nM
H2 Receptor, Ki: 49067 nM
     
H3R antagonist 2    
human H3 receptor, Ki: 170 nM
   
CP-66948  
H2 Receptor
     
CP19        
Histamine Receptor
Mizolastine-13C,d3
H1 Receptor
       
Promethazine-d4 hydrochloride
H1 Receptor
        ≥98.0%
Hydroxyzine-d8
H1 Receptor
        ≥99.0%
AVN-101 hydrochloride
H1 Receptor, Ki: 0.58 nM
        99.59%
Roxatidine acetate  
H2 Receptor
     
Lavoltidine  
H2 Receptor
     
VUF 8430 dihydrobromide      
H4 receptor
  98.00%
Chlorpheniramine-d4 maleate
H1 Receptor
       
Famotidine-13C,d3  
H2 Receptor
     
BL-1020 mesylate        
Histamine Receptor, Ki: 0.47 nM
BMY-25271  
H2 Receptor
     
Loratadine-d5
H1 Receptor
        99.96%
Epinastine-13C,d3 hydrobromide
H1 Receptor
       
Tripelennamine
H1 Receptor
       
Bavisant dihydrochloride    
H3 receptor
   
A-317920    
rat H3 receptor, pKi: 9.2
human H3 receptor, pKi: 7.0
   
Ciproxifan    
H3 receptor, IC50: 9.2 nM
   
Azelastine
H1 Receptor
       
VUF 10214      
H4 receptor, pKi: 8.25
 
VUF 5681 dihydrobromide    
H3 receptor
   
UR-PI376      
Human H4 Receptor, pEC50: 7.47
 
HSR-609
H1 Receptor
       
GSK334429    
H3 Receptor, pKi: 9.49
   
Impromidine  
H2 Receptor
     
Aminopotentidine  
H2 Receptor, Kb: 220 nM