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2. H1 antagonist - Wikipedia

   en.wikipedia.org/wiki/H1_antagonist

   H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions. Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines ; other agents may have antihistaminergic action but are ...

3. Category:H1 receptor antagonists - Wikipedia

   en.wikipedia.org/wiki/Category:H1_receptor...

   This page was last edited on 6 February 2023, at 05:37 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

4. Antihistamine - Wikipedia

   en.wikipedia.org/wiki/Antihistamine

   Itching, sneezing, and inflammatory responses are suppressed by antihistamines that act on H1-receptors. [ 2 ] [ 8 ] In 2014, antihistamines such as desloratadine were found to be effective to complement standardized treatment of acne due to their anti-inflammatory properties and their ability to suppress sebum production.

5. Histamine H1 receptor - Wikipedia

   en.wikipedia.org/wiki/Histamine_H1_receptor

   The H 1 receptor is a histamine receptor belonging to the family of rhodopsin-like G-protein-coupled receptors.This receptor is activated by the biogenic amine histamine.It is expressed in smooth muscles, on vascular endothelial cells, in the heart, and in the central nervous system.

6. Histamine receptor - Wikipedia

   en.wikipedia.org/wiki/Histamine_receptor

   Histamine receptors are proteins that bind with histamine, a neurotransmitter involved in various physiological processes. There are four main types: H1, H2, H3, and H4. H1 receptors are linked to allergic responses, H2 to gastric acid regulation, H3 to neurotransmitter release modulation, and H4 to immune system function.

7. Diphenhydramine - Wikipedia

   en.wikipedia.org/wiki/Diphenhydramine

   Diphenhydramine, while traditionally known as an antagonist, acts primarily as an inverse agonist of the histamine H 1 receptor. [67] It is a member of the ethanolamine class of antihistaminergic agents. [50] By reversing the effects of histamine on the capillaries, it can reduce the intensity of allergic symptoms.

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9. Antiemetic - Wikipedia

   en.wikipedia.org/wiki/Antiemetic

   [5] [6] It is a potent histamine H1 receptor antagonist, K i =1.6 nM, [7] and also exhibits notable 5-HT 3 antagonism. [6] Meclizine (Bonine, Antivert) Promethazine (Pentazine, Phenergan, Promacot) can be administered via a rectal suppository, intravenous injection, oral tablet or oral suspension for adults and children over 2 years of age ...