2. Signaling Pathways
  3. GPCR/G Protein
    Immunology/Inflammation
    Neuronal Signaling
  4. Histamine Receptor
  5. H1 Receptor Isoform
  6. H1 Receptor Inhibitor

H1 Receptor Inhibitor

H1 Receptor Inhibitors (19):

Cat. No. Product Name Effect Purity
  • HY-B0971
    Pheniramine maleate
    		Inhibitor 99.94%
    Pheniramine (Prophenpyridamine; Tripoton) maleate is a first-generation histamine H1 receptor antagonist, acts on the central nervous system (CNS) with sedative and hypnotic effect. Pheniramine maleate displays antitumor effect and induces leukemia cells apoptosis. Pheniramine maleate is also a safe and effective local agent that can suppress or relieve pain, with antipruritic effects.
  • HY-B0527A
    Amitriptyline hydrochloride
    		Inhibitor 98.91%
    Amitriptyline hydrochloride is an inhibitor of serotonin reuptake transporter (SERT) and noradrenaline reuptake transporter (NET), with Kis of 3.45 nM and 13.3 nM for human SERT and NET, respectively. Amitriptyline hydrochloride also weakly binds to dopamine reuptake transporter (DAT) with a Ki of 2.58 μM. Amitriptyline hydrochloride also inhibits adrenergic, muscarinic, histamine and 5-HT receptors. Amitriptyline hydrochloride is a TrkA and TrkB receptors agonist with potent neurotrophic activity. Amitriptyline hydrochloride has antidepressant activity.
  • HY-B0157A
    Ketotifen fumarate
    		Inhibitor 99.92%
    Ketotifen (HC 20-511) fumarate is an orally active second-generation noncompetitive histamine 1 (H1) receptor blocker and mast cell stabilizer. Ketotifen fumarate can block 6-phosphogluconate dehydrogenase (PGD) in vitro. Ketotifen fumarate also has antiviral activity against SARS-CoV-2 and Influenza virus. Ketotifen fumarate can be used to the research of autoimmune encephalomyelitis (EAE) and asthma attack prevention.
  • HY-10791
    Ritanserin
    		Inhibitor 99.68%
    Ritanserin (R 55667) is a highly potent, relatively selective, orally active, long acting antagonist of 5-HT2 receptor, with an IC50 of 0.9 nM, less active on Histamine H1, Dopamine D2, Adrenergic α1, Adrenergic α2 receptors.
  • HY-B0188A
    Mianserin hydrochloride
    		Inhibitor 99.87%
    Mianserin hydrochloride (Org GB 94) is a H1 receptor inverse agonist and is a psychoactive agent of the tetracyclic antidepressant.
  • HY-B1215
    Dimenhydrinate
    		Inhibitor 99.89%
    Dimenhydrinate is an orally active H1-antihistamine consisting of Diphenhydramine (HY-B0303) and 8-Chlorotheophylline. Dimenhydrinate is used to prevent nausea, vomiting, dizziness, and vertigo associated with motion sickness.
  • HY-B0970
    Diphenylpyraline hydrochloride
    		Inhibitor 99.94%
    Diphenylpyraline hydrochloride is a potent histamine H1?receptor antagonist. Diphenylpyraline hydrochloride acts as an orally active antihistamine agent?with antimuscarinic and antiallergic effects. Diphenylpyraline hydrochloride can be used for the relief of allergic conditions including rhinitis and hay fever, and in pruritic skin disorders in vivo.
  • HY-N7503
    Psoralenoside
    		Inhibitor 99.84%
    Psoralenoside is a benzofuran glycoside from Psoralea corylifolia. Psoralenoside exhibits high binding affinities against histaminergic H1, calmodulin, and voltage-gated L-type calcium channels (E-value≥-6.5 Kcal/mol). Psoralenoside shows estrogen-like activity, osteoblastic proliferation accelerating activity, antitumor effects and antibacterial activity.
  • HY-100238
    Antihistamine-1
    		Inhibitor 99.45%
    Antihistamine-1 is a H1-antihistamine (Ki=6.9 nM) with acceptable blood-brain barrier penetration and also an inhibitor of CYP2D6 and hERG channel with IC50s of 5.4 and 0.8 μM, respectively.
  • HY-A0069
    Doxylamine succinate
    		Inhibitor 99.76%
    Doxylamine (succinate), a first generation antihistamine, is a histamine (H1) receptor antagonist. Doxylamine is also a local analgesic agent and effective hypnotic agent.
  • HY-B0157AS
    Ketotifen-d3 fumarate
    		Inhibitor 99.23%
    Ketotifen-d3 (fumarate) is the deuterium labeled Ketotifen fumarate. Ketotifen (HC 20511) fumarate is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer, which is used to prevent asthma attacks[1][2].
  • HY-B0157
    Ketotifen
    		Inhibitor
    Ketotifen (HC 20-511) is an orally active second-generation noncompetitive histamine 1 (H1) receptor blocker and mast cell stabilizer. Ketotifen can block 6-phosphogluconate dehydrogenase (PGD) in vitro. Ketotifen also has antiviral activity against SARS-CoV-2 and Influenza virus. Ketotifen can be used to the research of autoimmune encephalomyelitis (EAE) and asthma attack prevention.
  • HY-121422
    JZP-361
    		Inhibitor 99.72%
    JZP-361 is a potent, reversible and selective inhibitor of human recombinant MAGL (hMAGL) with an IC50 of 46 nM. JZP-361 also shows antihistaminergic activities and can be used for asthma research.
  • HY-B0349A
    Meclizine
    		Inhibitor
    Meclizine (Meclozine), an antihistamine, reversibly inhibits the interaction of histamine at the H1 receptors. Meclizine is a member of the piperazine class of H1 antagonists. Meclizine is an effective anti-motion sickness agent. Meclizine crosses the blood–brain barrier. Meclizine is an agonist ligand for mouse constitutive androstane receptor (CAR) and an inverse agonist for Human CAR. Meclizine can be used for the research of polyQ toxicity disorders, such as Huntington's disease.
  • HY-B0349B
    Meclizine dihydrochloride monohydrate
    		Inhibitor
    Meclizine (Meclozine) dihydrochloride monohydrate, an antihistamine, reversibly inhibits the interaction of histamine at the H1 receptors. Meclizine dihydrochloride is a member of the piperazine class of H1 antagonists. Meclizine dihydrochloride monohydrate is an effective anti-motion sickness agent. Meclizine dihydrochloride monohydrate crosses the blood-brain barrier. Meclizine dihydrochloride monohydrate is an agonist ligand for mouse constitutive androstane receptor (CAR) and an inverse agonist for Human CAR. Meclizine dihydrochloride monohydrate can be used for the research of polyQ toxicity disorders, such as Huntington's disease.
  • HY-17042AS
    Cetirizine-d4 dihydrochloride
    		Inhibitor
    Cetirizine-d4 (dihydrochloride) is a deuterium labeled Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response[1][2][3].
  • HY-B0801AS
    Fexofenadine-d10 hydrochloride
    		Inhibitor
    Fexofenadine-d10 (hydrochloride) is deuterium labeled Fexofenadine (hydrochloride). Fexofenadine hydrochloride (MDL-16455 hydrochloride), a H1R antagonist, is an anti-allergic agent used in seasonal allergic rhinitis and chronic idiopathic urticarial (person aged ≥16 years)[1].
  • HY-164010
    SUN-1334H free base
    		Inhibitor
    SUN-1334H free base is an orally active inhibitor for histamine H1 receptor, with an IC50 of 20.3 nM and Ki of 9.7 nM. SUN-1334H free base inhibits histamine-induced contractions of isolated guinea-pig ileum with an IC50 of 0.198 μM. SUN-1334H free base inhibits histamine-induced bronchoconstriction in guinea pigs, histamine-induced skin wheals in beagle dogs, and ovalbumin-induced rhinitis in guinea pigs.
  • HY-117046A
    AVN-101 hydrochloride
    		Inhibitor 99.59%
    AVN-101 hydrochloride is a potent, brain-penetrant and orally active 5-HT7 receptor antagonist (Ki of 153 pM), with slightly lesser potency toward 5-HT6, 5-HT2A, and 5HT-2C receptors (Ki values of 2.04 nM, 1.56  nM, and 1.17  nM, respectively). AVN-101 hydrochloride also exhibits a rather high affinity toward histamine H1 (Ki of 0.58 nM) and adrenergic α2A, α2B, and α2C (Ki= 0.41-3.6 nM) receptors. AVN-101 hydrochloride can be studied in such diseases as general anxiety disorders, depression, schizophrenia, and multiple sclerosis.