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Histamine H2-receptor antagonist
Ranitidine is a potent, selective and orally active histamine H2-receptor antagonist with an IC50 of 3.3 μM that inhibits gastric secretion.- Jingyeong Shin, .et al. , Chemical Engineering Journal, 2023, December
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H2-receptor antagonist
Cimetidine is a histamine H2-receptor antagonist that inhibits stomach acid production.- Jingyeong Shin, .et al. , Chemical Engineering Journal, 2023, December
- Ciproxifan is an extremely potent histamine H3 inverse agonist/antagonist.
- K Yamamoto, .et al. , Naunyn-Schmiedeberg's Arch Pharmacol, 2019, pp 1-12 PMID: 30919010
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Histamine Antagonist
JNJ7777120 is a potent, selective non-imidazole H4?histamine receptor antagonist.- K Yamamoto, .et al. , Naunyn-Schmiedeberg's Arch Pharmacol, 2019, pp 1-12 PMID: 30919010
- Yamamoto K, .et al. , Neurosci Lett, 2018, May 29;676:103-107 PMID: 29655943
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H1 antagonist
Asenapine shows high affinity (pKi) for numerous receptors, including the serotonin 5-HT1A (8.6), 5-HT1B (8.4), 5-HT2A (10.2), 5-HT2B (9.8), 5-HT2C (10.5), 5-HT5A (8.8), 5-HT6 (9.5), and 5-HT7 (9.9) receptors, the adrenergic α1 (8.9), α2A (8.9), α2B (9.5), and α2C (8.9) receptors, the dopamine D1 (8.9), D2 (8.9), D3 (9.4), and D4 (9.0) receptors, and the histamine H1 (9.0) and H2 (8.2) receptors.- Keisuke Obara, .et al. , Biol Pharm Bull, 2021, 44, 1140-1150 PMID: 34334499
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Histamine Receptor antagonist
Bepotastine Beslilate (Bepreve) is a histamine H1 receptor anatagonist.- Reiko Watanabe, .et al. , J Med Chem, 2021, Mar 11;64(5):2725-2738 PMID: 33619967
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H1-receptor antagonist
Astemizole is a potent antihistamine (H1-receptor antagonist, IC50 = 4 nM) that displays selectivity over dopamine, 5-HT, and muscarinic acetylcholine receptors. This compound has shown potent hERG K+ channel blocking activity (IC50 = 0.9 nM), antimalarial activity in multidrug resistant strains in vitro (IC50 = 227 - 734 nM), and has been used as a chaperone to correct folding defects and restore protein function for some mutated forms of hERG channels.- Reiko Watanabe, .et al. , J Med Chem, 2021, Mar 11;64(5):2725-2738 PMID: 33619967
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PAFR inhibitor/H1 receptor inhibitor
Rupatadine is an inhibitor of PAFR and histamine (H1) receptor with Ki of 550 and 102 nM, respectively. - Bepotastine is a non-sedating, selective antagonist of the histamine 1 (H1) receptor.
- Bamirastine inhibits ligand binding to recombinant human histamine H1 receptors (rhH1R) with an IC50 value of 17.3 nM.
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PAFR inhibitor/H1 receptor inhibitor
Rupatadine is an inhibitor of PAFR and histamine (H1) receptor with Ki of 550 and 102 nM, respectively. -
nonimidazole inverse agonist
Pitolisant is a potent and selective nonimidazole inverse agonist at the recombinant human histamine H3 receptor (Ki=0.16 nM). -
Brompheniramine maleate is a first-generation antihistamine. Brompheniramine works by acting as an antagonist of histamine H1 receptors. It also functions as a moderately effective anticholinergic agent, and is likely an antimuscarinic agent similar to other common antihistamines such as diphenhydramine.
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histamine receptor antagonist
Cyproheptadine hydrochloride is a histamine receptor antagonist for 5-HT2 receptor with IC50 of 0.6 nM. -
NMDA receptor antagonist
Orphenadrine citrate is a NMDA receptor antagonist with Ki of 6.0 +/- 0.7 μM, HERG potassium channel blocker. -
H2 receptor antagonist
Lafutidine is a second generation H2 receptor antagonist having multimodal mechanism of action. - Mizolastine is a second generation antihistamine agent with high affinity and specificity for histamine H1 receptors.
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COX inhibitor/histamine H1 receptor agonist
Fexofenadine HCl is an antihistamine that inhibits Cox-1, Cox-2, and is a histamine H1 receptor agonist - Roxatidine Acetate Hydrochloride is a histamine H2-receptor antagonist used in ulcer treatment. This compound has been found to inhibit platelet function in vitro.
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Histamine H4 receptor antagonist
A 943931 2HCl is a potent and selective histamine H4 receptor antagonist (pKi values are 7.15 and 8.12 at human and rat receptors respectively). -
histamine H3 receptor agonist
Immethridine hydrobromide is a strong and highly selective histamine H3 receptor agonist (pEC50 = 9.74) that displays 300-fold selectivity over the H4 receptor (pKi values are 9.07 and 6.61 respectively). - Lodoxamide is an antiallergic compound acting as a mast-cell stabilizer for the treatment of asthma and allergic conjunctivitis.
- Peptide 401, a potent mast cell degranulating factor from bee venom, suppresses the increased vascular permeability due to intradermal injection of various smooth muscle spasmogens (histamine, and 5-HT).
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Histamine H1 receptor antagonist
Promethazine HCl is a potent histamine H1 receptor antagonist. -
H4 receptor antagonist
JNJ-39758979 is histamine H4 receptor antagonists with a Ki of 12.5 nM. -
histamine H3 receptors agonist
S38093 is an inverse agonist at histamine H3 receptors. CAS: 862896-30-8 (Free base) 1222097-72-4 (HCl) -
H1 histamine receptor antagonist
Terfenadine ((??)-Terfenadine) is a potent open-channel blocker of hERG with an IC50 of 204 nM. Terfenadine, an H1 histamine receptor antagonist, acts as a potent apoptosis inducer in melanoma cells through modulation of Ca2+ homeostasis. Terfenadine induces ROS-dependent apoptosis, simultaneously activates Caspase-4, -2, -9 and induces p73, Noxa. -
Histamine H1 receptor antagonist
Levocetirizine dihydrochloride is a L-isomer of cetirizine and histamine H1 receptor antagonist. It incrases levels of CD4+ CD25+ T cells and decreases levels of eosinophils, decreasing allergy symptoms. -
histamine H1 receptor antagonist
Emedastine Difumarate is the difumarate salt form of emedastine, a second generation, selective histamine H1 receptor antagonist with anti-allergic activity. This medication is an antihistamine, prescribed for allergic conjunctivitis. -
Histamine H1 receptor antagonist
Hydroxyzine pamoate is an histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. -
antihistamine
Diphenylpyraline hydrochloride is a first-generation antihistamine with anticholinergic effects of the diphenylpiperidine class. -
Histamine 1 receptor antagonist
Acrivastine (BW825C) is a short acting histamine 1 receptor antagonist for the treatment of allergic rhinitis. -
hemagglutinin (HA)-receptor antagonist
Alimemazine hemitartrate is a phenothiazine derivative that is generally used as an antipruritic agent and also a hemagglutinin (HA)-receptor antagonist. - Lodoxamide Tromethamide is a mast-cell stabilizer, inhibiting type I immediate hypersensitivity reaction by preventing the antigen-stimulated calcium influx into mast cells and the release of slow-reacting substances of anaphylaxis (SRS-A).
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histamine H1-receptor antagonist
Diazoline is a histamine H1-receptor antagonist. -
histamine H1 antagonist
Chlorcyclizine hydrochloride is a histamine H1 antagonist. -
Histamine H1 antagonist
Mequitazine is a potent histamine H1 antagonist or antihistamine. It competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. -
histamine-H1 receptor blocking agent
Carbinoxamine maleate is a histamine-H1 receptor blocking agent with antihistamine and anticholinergic properties. -
serotonin/histamine2 antagonist
Cyproheptadine hydrochloride sesquihydrate is an antihistamine and is an antagonist of serotonin and histamine2. -
H1 histamine receptor antagonist
Alcaftadine is a high affinity ligand for the H1 receptor, with a pKi (8.5) that is comparable with that of other H1 antihistamines. Alcaftadine is also an antagonist for H2 and H4 receptors with no affinity for the H3 receptor. -
Histamine H1 receptor inhibitor
Antazoline HCl is a first generation antihistamine, binding to the histamine H1 receptor and blocking the action of endogenous histamine. -
Histamine/cholinergic inhibitor
Azatadine is an histamine and cholinergic inhibitor with IC50 of 6.5 nM and 10 nM, respectively. -
Histamine H1 receptor antagonist
Cyclizine 2HCl is a piperazine derivative with Histamine H1 receptor antagonist activity. -
H1-receptor antagonist
Tripelennamine hydrochloride, a H1-receptor antagonist, is a psychoactive drug and member of the pyridine andethylenediamine classes that is used as an antipruritic and first-generation antihistamine. -
LTC4 inhibitor
Nedocromil sodium suppresses the action or formation of multiple mediators, including histamine, leukotriene C4 (LTC4), and prostaglandin D2 (PGD2). -
histamine H2-receptor antagonist
Niperotidine is a histamine H2-receptor antagonist.

