Beta1-adrenergic agonist
# Beta1-adrenergic agonist

$Beta_1-adrenergic$ agonists, also known as $Beta_1-adrenergic$ receptor agonists, are a class of drugs that bind selectively to the beta-1 adrenergic receptor. As a result, they act more selectively upon the heart. Beta-adrenoceptors typically bind to norepinephrine release by sympathetic adrenergic nerves and to circulating epinephrine. The effect of B-adrenoceptors is cardiac stimulation, such as increased heart rate, heart contractility, heart conduction velocity and heart relaxation.

## Examples

Examples include:

* denopamine $β_1$ agonist
* dobutamine $β_1>β_2$ agonist
* xamoterol $β_1$ partial agonist
* epinephrine
   * Epinephrine is a non-selective beta agonist, this means it also stimulates the beta 2 adrenergic receptor. Therefore, epinephrine is a Beta2-adrenergic agonist.
* Isoprenaline
