Clenbuterol Tablets 40 mcg contain Clenbuterol, a long-acting bronchodilator that relaxes airway muscles and improves breathing. It is primarily used in some countries for managing asthma and other respiratory conditions, although it is not approved for human use in countries like Australia and the United States. Clenbuterol is sometimes misused for weight loss and bodybuilding due to its stimulant and thermogenic effects, which can increase metabolism and fat burning. However, improper use may lead to serious side effects such as increased heart rate, high blood pressure, palpitations, anxiety, and muscle cramps.