![](http://www.alamy.com/thumbs/6/CCD71F57-1BD1-47F7-98F8-F8E0709B3BDE/FP35XW.jpg)
Betahistine histamine receptors.
Betahistine has a very strong affinity as an antagonist for histamine H3 receptors and a weak affinity as an agonist for histamine H1 receptors.
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