Clenbuterol is a beta-2 adrenergic receptor agonist that can stimulate smooth-muscle relaxation and produce systemic sympathomimetic effects. It has been used medically in some countries for respiratory conditions, although its regulatory status differs internationally.

Clenbuterol can increase heart rate and may cause tremor, anxiety, palpitations, and changes in blood pressure. More serious cardiovascular complications can occur with excessive exposure.

The supplied product name references a pharmaceutical presentation. Product identity, regulatory status, and formulation should be verified independently because clenbuterol products vary significantly across markets.