![](https://www.Immune-System-Research.com/"wp-content/uploads"/2021/02/S-38093-is-a-Brain-Penetrant-and-Orally-Active-Antagonist-of-H3-Receptor-2021-02-24.jpg)
Histamine is an important neurotransmitter exerting its actions via four classes of molecularly and/or pharmacologically well-defined receptors. They differ in…
![](https://www.Immune-System-Research.com/"wp-content/uploads"/2020/09/A-987306-is-a-Potent-and-Orally-Active-Histamine-H4-Antagonist-2020-09-08.jpg)
Histamine exhibits its functions through four known G-protein coupled receptors, the H1, H2, H3, and H4 receptors. Some histamine receptor…
![](https://www.Immune-System-Research.com/"wp-content/uploads"/2020/07/PF-03654764-is-a-Selective-Histamine-H3-Receptor-Antagonist-2020-07-29.jpg)
The symptoms of Allergic rhinitis are rhinorrhea, sneezing, nasal pruritus, congestion, and aggravation of comorbid asthma. Histamine can interact with…