Clenbuterol is a sympathomimetic drug commonly used as a bronchodilator for treating asthma and other respiratory conditions. It functions by stimulating beta-2 adrenergic receptors, which leads to relaxation of bronchial muscles and improved airflow. Beyond its medical use, Clenbuterol is popular in the bodybuilding and fitness communities for its fat-burning properties. It increases metabolic rate and promotes weight loss, making it a sought-after supplement for enhancing physique. However, its use can lead to side effects like heart palpitations, tremors, and insomnia. It is important to use Clenbuterol under medical supervision to avoid adverse effects.