It acts primarily on beta 1 receptors but is a less potent beta agonist than isoproterenol.
Useful in the management of CHF when an increase in heart rate is not desired.
Peak Effect: 10-20 minutes
Half life: 2 minutes
To increase cardiac output in severe emergencies such as cardiogenic shock dopamine is the preferred agent.
Increases in heart rate of >10% may induce or exacerbate myocardial ischemia
PVC’s can occur
Lidocaine should be readily available.
Patients taking tricyclic antidepressants (TCAs) are at increased risk of hypertension.
Dosage range is between 2 and 20 mcg/kg/minute