Higenamine activates beta-2 adrenergic receptors: (1) Bronchial smooth muscle relaxation (bronchodilatory — why it's in traditional Chinese medicine for asthma); (2) Lipolysis stimulation in adipocytes (via cAMP→PKA pathway — same as epinephrine); (3) Cardiac stimulation (positive inotropic and chronotropic — increases heart rate and contractile force); (4) Skeletal muscle vasodilation. The PROBLEM: beta-2 agonists have narrow therapeutic windows. Without human dose-response data, there is no way to determine a safe dose. The cardiac stimulant effects are the primary safety concern.
Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.