Clenbuterol steroid is a bronchodilator and sympathomimetic stimulant that has been used as a weight loss supplement by bodybuilders and athletes. It is also used to treat respiratory disorders such as chronic obstructive pulmonary disease (COPD) and asthma in some countries. Clenbuterol is sometimes referred to as “clen” or “buterol”.

The Mechanism of Action

Clenbuterol works by stimulating the beta-2 receptors that are found on the smooth muscles lining the airways, blood vessels, and other organs in the body. This stimulation causes relaxation of the smooth muscles, which leads to dilation of the airways and increased oxygenation of the lungs. Clenbuterol also increases the metabolic rate and fat burning, making it an attractive weight loss supplement for bodybuilders and athletes.

Uses of Clenbuterol Steroid

1. Weight Loss: Clenbuterol has gained popularity among bodybuilders and athletes for its ability to increase metabolism and fat burning. It is often used during cutting cycles to help reduce body fat while retaining lean muscle mass.

2. Respiratory Disorders: Clenbuterol is also used to treat respiratory disorders such as asthma and COPD in some countries. It helps to open up the airways and improve breathing.

How Is Clenbuterol Administered?

Clenbuterol is usually available in tablet form, but it can also be found in liquid and powder form. The recommended dosage for weight loss is usually between 20-40mcg per day, although some users may take higher doses. Clenbuterol should not be taken for more than 3-4 weeks at a time, as prolonged use can lead to adverse effects.

Side Effects of Clenbuterol

Clenbuterol has several side effects, including:

1. Increased Heart Rate: Clenbuterol can cause an increase in heart rate, which can lead to palpitations and arrhythmias.

2. Tremors: Clenbuterol can cause tremors or shakes, especially in the hands.

3. Insomnia: Clenbuterol can interfere with sleep patterns and cause insomnia.

4. Headaches: Clenbuterol can cause headaches, especially in the first few days of use.

5. Sweating: Clenbuterol can cause excessive sweating, especially during exercise.

Legal Status of Clenbuterol

Clenbuterol is a controlled substance in many countries, including the United States. It is classified as a Schedule III drug under the Controlled Substances Act, which means that it has a moderate to low potential for abuse and dependence. In some countries, such as China and Mexico, clenbuterol is used as a food additive to promote lean muscle growth in animals. However, this practice is illegal in many countries due to the potential health risks associated with consuming clenbuterol-contaminated meat.


Clenbuterol steroid is a popular weight loss supplement among bodybuilders and athletes, but it can also be used to treat respiratory disorders such as asthma and COPD. It works by stimulating the beta-2 receptors in the body, which leads to increased metabolism and clenoged fat burning. However, clenbuterol can have several side effects, including increased heart rate, tremors, insomnia, headaches, and sweating. It is also a controlled substance in many countries and should only be used under the guidance of a healthcare professional.