Alpha-methylhistamine
Encyclopedia
α-Methylhistamine is a histamine agonist
Histamine agonist
A histamine agonist is a drug which causes increased activity at one or more of the four histamine receptor subtypes.Betahistine is an example used to treat vertigo.Betazole and impromidine are examples used in diagnostics.-External links:...

 selective for the receptor subtype H3. It causes lowering of blood pressure and a decrease of heart rate
Heart rate
Heart rate is the number of heartbeats per unit of time, typically expressed as beats per minute . Heart rate can vary as the body's need to absorb oxygen and excrete carbon dioxide changes, such as during exercise or sleep....

in animal models.
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