December 3, 2021

Vertigo Treatment Blog

Advancing the diagnosis and treatment of vertigo and balance disorders..



Antihistamines are drugs that block the action of histamine. They are commonly used for the relief of allergy symptoms or for gastrointestinal conditions. This pharmacology lecture covers topics such as pathophysiology of allergic reaction, histamine and its actions, H1 and H2 histamine receptors, mast cells, parietal cells, mechanism of action of H1 and H2 antagonists. Drugs mentioned include first generation antihistamines; Brompheniramine, Chlorpheniramine, Clemastine, Cyproheptadine, Diphenhydramine, Doxylamine, Hydroxyzine, Meclizine, Promethazine; Second generation antihistamines; Cetirizine, Desloratadine, Fexofenadine, Levocetirizine, Loratadine, Azelastine, Olopatadine, Ketotifen; H2 blockers; Cimetidine, Famotidine, Nizatidine, and Ranitidine.

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0:00 Pathophysiology of allergic reaction
2:00 Histamine receptors
3:41 H1 receptor blockers
7:14 H2 receptor blockers

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22 thoughts on “Pharmacology – ANTIHISTAMINES (MADE EASY)

  1. I live in pakistan
    I creating the video which Iโ€™ll describe the how you should rid off anti hestimine.
    Itโ€™s just a dry blood. Itโ€™s a natural medicine and daily diet. Please donโ€™t watch this video and just use the natural diet.

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