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Class of medications
histamine at the histamine H2 receptors of the parietal cells in the stomach. This decreases the production of stomach acid. H2 antagonists can be used in the
H2_receptor_antagonist
Mammalian protein found in Homo sapiens
H2 receptors are a type of histamine receptor found in many parts of the anatomy of humans and other animals. They are positively coupled to adenylate
Histamine_H2_receptor
Drug that blocks histamine or histamine agonists
they were H1 receptor antagonists and also to the development of H2 receptor antagonists, where H1-antihistamines affected the nose and the H2-antihistamines
Antihistamine
Medication
sold under the brand name Tagamet among others, is a histamine H2 receptor antagonist that inhibits stomach acid production. It is mainly used in the
Cimetidine
Medication that reduces stomach acid
sold under the brand name Pepcid among others, is a histamine H2 receptor antagonist medication that decreases stomach acid production. It is used to
Famotidine
Receptors of clonidine and other imidazolines
adrenoceptor agonist) 2-BFI (I2 agonist, NMDA antagonist) Cimetidine (I1 agonist, H2 receptor antagonist) Clonidine (I1 agonist, α2 adrenoceptor agonist)
Imidazoline_receptor
Class of vitamins
(dietary) vitamin B12, although not of supplemental vitamin B12. H2-receptor antagonist examples include cimetidine, famotidine, nizatidine, and ranitidine
Vitamin_B12
Class of anesthetics
NMDA receptor antagonists are a class of drugs that work to antagonize, or inhibit the action of, the N-methyl-D-aspartate receptor (NMDAR). They are commonly
NMDA_receptor_antagonist
Drugs that block the action of histamine
H1 antagonists, also called H1 blockers, are a class of medications that block the action of histamine at the H1 receptor, helping to relieve allergic
H1_antagonist
Antihistaminic drug
An H3 receptor antagonist is a type of antihistaminic drug used to block the action of histamine at H3 receptors. Unlike the H1 and H2 receptors which
H3_receptor_antagonist
Chemical compound
Metiamide is a histamine H2 receptor antagonist developed from another H2 antagonist, burimamide. It was an intermediate compound in the development of
Metiamide
(anti-glaucoma carbonic anhydrase inhibitor) Famotidine (histamine H2 receptor antagonist) Probenecid (uricosuric) Sulfasalazine (anti-inflammatory agent
List_of_sulfonamides
Chemical compound
Lafutidine (INN) is a second generation histamine H2 receptor antagonist having multimodal mechanism of action and used to treat gastrointestinal disorders
Lafutidine
Medication that decreases stomach acid
risk of Clostridioides difficile colitis. Ranitidine is an H2 histamine receptor antagonist that works by blocking histamine, thus decreasing the amount
Ranitidine
Class of receptor proteins that bind histamine
(parietal cells), H2 receptors regulate gastric acid secretion by stimulating the production of hydrochloric acid. H2 antagonists (H2 blockers) are used
Histamine_receptor
drugs in these classes the categorization code ATC code A02. The H2 receptor antagonists are a class of drugs used to block the action of histamine on parietal
Drugs for acid-related disorders
Drugs_for_acid-related_disorders
Chemical compound
Nizatidine is a histamine H2 receptor antagonist that inhibits stomach acid production, and is commonly used in the treatment of peptic ulcer disease and
Nizatidine
Chemical compound
Burimamide is an antagonist at the H2 and H3 histamine receptors. At physiological pH, it is largely inactive as an H2 antagonist, but its H3 affinity
Burimamide
Chemical compound
loxtidine; development code AH-23,844) is a highly potent and selective H2 receptor antagonist which was under development by Glaxo Wellcome (now GlaxoSmithKline)
Lavoltidine
Antiandrogen with a nonsteroidal chemical structure
(Tagamet): An over-the-counter histamine H2 receptor antagonist that also shows very weak activity as an AR antagonist. Also inhibits cytochrome P450 enzymes
Nonsteroidal_antiandrogen
Medication class with multiple uses
also spelled β-blockers and also sometimes known as β-adrenergic receptor antagonists, are a class of medications predominantly used to manage abnormal
Beta_blocker
Class of drugs for reducing stomach acid
production. Proton-pump inhibitors have largely superseded the H2-receptor antagonists, a group of medications with similar effects but a different mode
Proton-pump_inhibitor
Topics referred to by the same term
the trade name of two different drugs: Famotidine, a histamine H2-receptor antagonist that inhibits stomach acid production Ethoheptazine, an opioid analgesic
Zactane
Scottish doctor and pharmacologist (1924–2010)
Black was also responsible for the development of cimetidine, an H2 receptor antagonist, a drug used to treat stomach ulcers. Black was born on 14 June
James_Black_(pharmacologist)
Type of receptor ligand or drug that blocks a biological response
A receptor antagonist is a type of receptor ligand or drug that blocks or dampens a biological response by binding to and blocking a receptor rather than
Receptor_antagonist
Chemical compound
Zolantidine is a brain-penetrating selective histamine H2 receptor (HRH2) antagonist developed by Smith, Kline & French, with the research code of SK&F
Zolantidine
Substance related to histamine functions
receptor agonists and histamine receptor antagonists (or antihistamines). Subdivisions of histamine antagonists include H1 receptor antagonists, H2 receptor
Histaminergic
Group of pharmaceuticals that modulate the renin–angiotensin system
Angiotensin II receptor blockers (ARBs), formally angiotensin II receptor type 1 (AT1) antagonists, also known as angiotensin receptor blockers, angiotensin
Angiotensin II receptor blocker
Angiotensin_II_receptor_blocker
Anti-nausea group of medications
The 5-HT3 antagonists, informally known as "setrons", are a class of drugs that act as receptor antagonists at the 5-HT3 receptor, a subtype of serotonin
5-HT3_antagonist
Medical condition
inhibitors and H2 receptor antagonists allows there to be time for healing. Proton pump inhibitors are preferred over H2 receptor antagonists because they
Mallory–Weiss_syndrome
Chemical compound
hydrochloride (USAN); development code SKF-93479) is a long-acting H2 receptor antagonist developed by Smith, Kline & French and described as an antiulcerogenic
Lupitidine
Any disease or malfunction of the autonomic nervous system
is important. Treatment can include proton-pump inhibitors and H2 receptor antagonists used for digestive symptoms such as acid reflux. To treat genitourinary
Dysautonomia
Agent that interferes with action at the vasopressin receptors
A vasopressin receptor antagonist (VRA) is an agent that interferes with action at the vasopressin receptors. Most commonly VRAs are used in the treatment
Vasopressin receptor antagonist
Vasopressin_receptor_antagonist
Drug that binds to but does not activate muscarinic cholinergic receptors
A muscarinic acetylcholine receptor antagonist, also simply known as a muscarinic antagonist or as an antimuscarinic agent, is a type of anticholinergic
Muscarinic_antagonist
Spontaneous flow of milk from the breast
a side effect associated with the use of the second-generation H2 receptor antagonist cimetidine (Tagamet). Galactorrhea can also be caused by antipsychotics
Galactorrhea
Index of chemical compounds with the same molecular formula
to: Carpindolol, a beta blocker Roxatidine acetate, a histamine H2 receptor antagonist drug This set index page lists chemical structure articles associated
C19H28N2O4
Class of pharmacological agents
α-blockers or α-adrenoreceptor antagonists, are a class of pharmacological agents that act as antagonists on α-adrenergic receptors (α-adrenoceptors). Historically
Alpha_blocker
Chemical compound
SKF 92994) is an H2 histamine receptor receptor antagonist. Willson RA, Hall T, Hart J (June 1988). "Oxmetidine (H2 receptor antagonist) induced cytotoxicity
Oxmetidine
Antihistamine medication
orally. It is an antihistamine and hence acts as a histamine H1 receptor antagonist. In addition to its antihistamine activity, cyproheptadine has anticholinergic
Cyproheptadine
Serotonin receptor protein distributed mainly in the choroid plexus
antidepressant in its own right, and acts as a 5-HT2C receptor antagonist. Fluoxetine acts as a direct 5-HT2C antagonist in addition to inhibiting serotonin reuptake
5-HT2C_receptor
Genes on human chromosome 3
potent, highly selective, orally bioavailable oxytocin receptor antagonists. Oxytocin receptor agonists have also been developed. Carbetocin Demoxytocin
Oxytocin_receptor
Main receptor for most antipsychotic drugs
receptor over the presynaptic D2 autoreceptor. Piribedil – also D3 receptor agonist and α2–adrenergic antagonist Pramipexole – also D3, D4 receptor agonist
Dopamine_receptor_D2
Drug which blocks dopamine receptors
dopamine antagonist, also known as an anti-dopaminergic and a dopamine receptor antagonist (DRA), is a type of drug which blocks dopamine receptors by receptor
Dopamine_antagonist
Chemical compound class
boost the efficacy of 5-HT3 antagonists to prevent nausea and vomiting. The discovery of neurokinin 1 (NK1) receptor antagonists was a turning point in the
NK1_receptor_antagonist
Burning sensation felt behind the breastbone
Heartburn treatment primarily involves antisecretory medications like H2 receptor antagonists (H2RAs) and proton-pump inhibitors (PPIs). Heartburn is a burning
Heartburn
Atypical antipsychotic medication
olanzapine and the other drug. Olanzapine is a potent antagonist of the muscarinic M3 receptor, which may underlie its diabetogenic side effects. Additionally
Olanzapine
Skin disorder
These may need to be given as a combination of H1 antagonists, or possibly with an H2-receptor antagonist such as cimetidine. Over-the-counter vitamin C
Dermatographic_urticaria
Combination medication to relieve pain from rheumatoid arthritis
nonsteroidal anti-inflammatory drug (NSAID) and famotidine, a histamine H2-receptor antagonist. Ibuprofen/famotidine is available as a generic medication. "Duexis-
Ibuprofen/famotidine
Histamine receptor
its receptor. Antihistamine – Histamine receptor antagonists H1-receptor antagonist Histamine H2-receptor Histamine H3-receptor Histamine H4-receptor GRCh38:
Histamine_H1_receptor
Pharmaceutical drug classification
ATC code A02 Drugs for acid related disorders is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric
ATC_code_A02
Protein found in humans
receptor antagonists reverse delay-dependent deficits in novel object discrimination by enhancing consolidation--an effect sensitive to NMDA receptor
5-HT6_receptor
Drugs blocking alpha-2 adrenergic receptors
a subset of the alpha blocker class of drugs and are antagonists to the α2 adrenergic receptor. They are mainly used in research, having found limited
Alpha-2_blocker
Agent in biochemistry
binds to the same receptor as an agonist but induces a pharmacological response opposite to that of the agonist. A neutral antagonist has no activity in
Inverse_agonist
Class of drugs
An adenosine receptor antagonist is a drug which acts as an antagonist of one or more of the adenosine receptors. The best known are xanthines and their
Adenosine_receptor_antagonist
Medication used to treat diabetes
metformin, although even quite large doses are often not fatal. The H2-receptor antagonist cimetidine causes an increase in the plasma concentration of metformin
Metformin
Chemical compound
which has antisecretory and bactericidal action. Group affiliation: H2-histamine receptor blocker. Pills. The film-coated tablet contains ranitidine bismuth
Ranitidine_bismuth_citrate
Parasympathetic nervous system inhibitors
anticholinergics by activating nicotinic acetylcholine receptors. Caffeine (although an adenosine receptor antagonist) can counteract the anticholinergic symptoms
Anticholinergic
Type of drug
An adrenergic antagonist is a drug that inhibits the function of adrenergic receptors. There are five adrenergic receptors, which are divided into two
Adrenergic_antagonist
G protein-coupled receptor
I (2005). "Receptor-antagonist interactions in the complexes of agouti and agouti-related protein with human melanocortin 1 and 4 receptors". Biochemistry
Melanocortin_receptor
Mammalian protein found in Homo sapiens
Antihistamine – histamine receptor antagonists H3-receptor antagonist Histamine H1-receptor Histamine H2-receptor Histamine H4-receptor GRCh38: Ensembl release
Histamine_H3_receptor
Condition of impaired digestion
proton-pump inhibitors (PPIs), H2 receptor antagonists (H2-RAs), prokinetic agents, and antiflatulents. PPIs and H2-RAs are often first-line therapies
Indigestion
Skin disease characterized by red, raised, and itchy bumps
with rebound hives once discontinued. H2-receptor antagonists are sometimes used in addition to H1-antagonists to treat urticaria, but there is limited
Hives
Neurotransmission-modulating substance
antagonist, or serotonin receptor antagonist, is a drug used to inhibit the action of serotonin and serotonergic drugs at serotonin (5-HT) receptors.
Serotonin_receptor_antagonist
Typical antipsychotic medication
Chlorpromazine is an antagonist to H1 receptors (provoking antiallergic effects), H2 receptors (reduction of forming of gastric juice), M1 and M2 receptors (dry mouth
Chlorpromazine
Class of transmembrane proteins
5-HT receptors, 5-hydroxytryptamine receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in
5-HT_receptor
Acetylcholine receptors named for their selective binding of muscarine
and scopolamine) manipulate these two distinct receptors by acting as selective agonists or antagonists. Acetylcholine (ACh) is a neurotransmitter found
Muscarinic acetylcholine receptor
Muscarinic_acetylcholine_receptor
Protein found in humans
Trace amine-associated receptor 1 (TAAR1) is a trace amine-associated receptor (TAAR) protein that in humans is encoded by the TAAR1 gene. TAAR1 is a
TAAR1
GHB receptor coding gene in the species Homo sapiens
administration of mixed GHB/GABAB receptor agonists, along with a selective GABAB antagonist or selective agonists for the GHB receptor which are not agonists at
GHB_receptor
Drug that inhibits the action of acetylcholine at nicotinic acetylcholine receptors
nicotinic antagonist is a type of anticholinergic drug that inhibits the action of acetylcholine (ACh) at nicotinic acetylcholine receptors. These compounds
Nicotinic_antagonist
Chemical compound
Ebrotidine is an H2 receptor antagonist with gastroprotective activity against ethanol-, aspirin- or stress-induced gastric mucosal damage. The antisecretory
Ebrotidine
Class of opioid receptors found in humans
cAMP levels. The structure of the inactive μ-opioid receptor has been determined with the antagonists β-FNA and alvimopan. Many structures of the active
Mu-opioid_receptor
Atypical antipsychotic medicine
receptor partial agonist, with a preference for the D3 receptor. It is a partial agonist at the serotonin 5-HT1A receptor and acts as an antagonist at
Cariprazine
Class of pharmaceutical compounds
A glycine receptor antagonist is a drug which acts as an antagonist of the glycine receptor. Selective Brucine Strychnine Tutin Non-selective Bicuculline
Glycine_receptor_antagonist
Diseases of the stomach and gastrointestinal tract
nizatidine are the four most commonly used H2-receptor antagonists (H2RAs). All of them have an effect on the H2 receptor. The H2RAs are reversible structural
Acid_peptic_diseases
Class of G protein-coupled receptors
The adrenergic receptors or adrenoceptors are a class of G protein-coupled receptors that are targets of many catecholamines like norepinephrine (noradrenaline)
Adrenergic_receptor
Monoamine neurotransmitter
decreases.[medical citation needed] Antagonist molecules, such as ranitidine or famotidine, block the H2 receptor and prevent histamine from binding,
Histamine
Mammalian protein found in Homo sapiens
5-HT2A receptors LSM-775 mCPP (in humans; weak partial agonist) MDA MDMA MEM Mescaline Methylergometrine (methylergonovine) Methysergide (antagonist in some
5-HT2B_receptor
Chemical compound
Sufotidine (INN, USAN, codenamed AH25352) is a long-acting competitive H2 receptor antagonist which was under development as an antiulcerant by Glaxo (now GlaxoSmithKline)
Sufotidine
Chemical compound
Niperotidine is a histamine antagonist selective for the H2 subtype. It was studied as a treatment for excessive gastric acidity, but withdrawn after
Niperotidine
Class of four receptor proteins to the molecule adenosine
adenosine receptors in humans: A1, A2A, A2B and A3; each is encoded by a different gene. The adenosine receptors are commonly known for their antagonists caffeine
Adenosine_receptor
Mammalian protein found in humans
denotes selective antagonist to the receptor. compound-6FA, PAM at intracellular binding site Cellular swelling Beta-2 adrenergic receptor has been shown
Beta-2_adrenergic_receptor
Serotonin receptor protein distributed in the cerebrum and raphe nucleus
5-HT1A receptors within the rostral ventrolateral medulla. The sympatholytic antihypertensive drug urapidil is an α1-adrenergic receptor antagonist and 5-HT1A
5-HT1A_receptor
Protein family
nicotinic antagonist and NOS inhibitor) Apraclonidine Brimonidine Cannabigerol (also acts as a moderate affinity 5-HT1A receptor antagonist, and low affinity
Alpha-2_adrenergic_receptor
Skeletal muscle relaxant
effectively manage pain of various types. H1 receptor antagonist (antihistamine) NMDA receptor antagonist (Ki value of 6.0 ± 0.7 μM, one hundred times
Orphenadrine
Pharmaceutical compound
biologically active, acting as a relatively potent GABAA receptor partial agonist and GABAA-ρ receptor antagonist or weak partial agonist. It shows varying activational
Imidazoleacetic_acid
Chemical compound
action. In contrast, CBD has been found to bind to the CB1 receptor as an inverse agonist/antagonist with a Ki ranging from 3.3 to 4.8 mM. In 2023 H4CBD epimers
H4-CBD
Cell surface receptor found in humans
adenosine receptor function, and non-selective adenosine receptor antagonists such as aminophylline, focused mainly on the role of adenosine receptors in the
Adenosine_A2A_receptor
Compounds that inhibit or block the activity of cannabinoid receptors
A cannabinoid receptor antagonist, also known simply as a cannabinoid antagonist or as an anticannabinoid, is a type of cannabinoidergic drug that binds
Cannabinoid receptor antagonist
Cannabinoid_receptor_antagonist
Medical school in Fife, Scotland
journalist Jean-Paul Marat, and inventor of beta blockers and H2 receptor antagonists, Nobel Prize in Medicine winner Sir James Black. Medicine was the
University of St Andrews School of Medicine
University_of_St_Andrews_School_of_Medicine
Protein-coding gene in the species Homo sapiens
(N/OFQ). This receptor is involved in the regulation of numerous brain activities, particularly instinctive and emotional behaviors. Antagonists targeting
Nociceptin_receptor
Protein-coding gene in the species Homo sapiens
4-dimethoxyphenoxy)alkylamino acetamides Compound 1m - Selective OX2 antagonist Orexin receptor GRCh38: Ensembl release 89: ENSG00000137252 – Ensembl, May 2017
Orexin_receptor_type_2
Antidepressant medication
mixed agonist and antagonist of various serotonin receptors, antagonist of adrenergic receptors, weak histamine H1 receptor antagonist, and weak serotonin
Trazodone
Chemical compound
Roxatidine acetate is a specific and competitive histamine H2 receptor antagonist drug that is used to treat gastric ulcers, Zollinger–Ellison syndrome
Roxatidine_acetate
Chemical compound
(S)-(+)-dimetindene is also a strong M2 receptor antagonist, with this enantiomer being more potent (up to 41-fold) for all muscarinic receptors assayed. The (R)-(-)-enantiomer
Dimetindene
Drug to increase activity at histamine receptors
increased activity at one or more of the four histamine receptor subtypes. H1 agonists promote wakefulness. H2: Betazole and Impromidine are examples of agonists
Histamine_agonist
Muscle relaxant medication
receptor antagonism. In terms of its antimuscarinic activity, it is said to be an antagonist of the muscarinic acetylcholine M1, M2, and M3 receptors
Cyclobenzaprine
G-protein coupled receptor
GABAB receptors (GABABR) are G-protein coupled receptors for gamma-aminobutyric acid (GABA). GABAB receptors are found in the central nervous system and
GABAB_receptor
Beta-lactam antibiotic
lead to higher concentrations of metformin in the body. Histamine H2 receptor antagonists like cimetidine and ranitidine may reduce the efficacy of cefalexin
Cefalexin
Protein-coding gene in the species Homo sapiens
receptor agonist, serotonin reuptake inhibitor) Apomorphine – D4 selective but also D2 and D3 agonist, α-adrenergic and serotonergic weak antagonist Nuciferine
Dopamine_receptor_D4
Protein-coding gene in humans
being the prototypical antagonist SCH-23390). D1 receptor has a high degree of structural homology to another dopamine receptor, D5, and they both bind
Dopamine_receptor_D1
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H2 RECEPTOR-ANTAGONIST
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H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
H2 RECEPTOR-ANTAGONIST
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