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Clenbuterol: What You Need to Know


Clenbuterol is a steroid-like chemical that was originally developed to treat asthma in horses by relaxing the animals’ lungs’ airways. Today, it’s best known in bodybuilding circles as a drug that promotes weight loss and helps to increase muscle mass.

The medication works as a decongestant as well as a bronchodilator. A decongestant thins the blood to lower blood pressure, whereas a bronchodilator widens the oxygen-carrying vessels, increasing the volume of oxygen in the blood. 

Clenbuterol is also approved as an asthma drug for humans in some European and Latin American countries. However, it is a prohibited substance in the United States for this purpose. 

Clenbuterol has been used in animal husbandry and by veterinarians in the United States in the past. The US Food Safety and Inspection Service discovered it had been fed to livestock in 1991, causing them to gain more muscle and lose fat. However, clenbuterol for animal use is illegal in many countries. 

The drug has become controversial because of its use in bodybuilding and weight-loss programs. 

We’ll look at how clenbuterol works, when it’s used, and what the risks are for people who take it in this article.

Why is This Drug Used?

It was for treating asthma that clenbuterol first saw light. Today, however, the drug is increasingly popular among bodybuilders, athletes, and dieters alike. 

Clenbuterol can be used to help people lose weight by speeding up their metabolism. It allows the user to maintain both muscle mass and body strength while simultaneously reducing body fat and weight. 

How Effective is Clenbuterol?

How effective is Clenbuterol

Clenbuterol has been shown to increase muscle mass while simultaneously reducing body fat levels. After ingestion, it produces an effect on the body that lasts for up to six days, as well (detectable traces can remain longer). For these reasons, it is commonly used as a weight loss supplement or to improve athletic performance. 

Clenbuterol raises your body temperature by a process known as thermogenesis, which occurs when you take the drug. When your core temperature rises, your metabolism kicks into high gear, burning calories at a faster rate. It’s possible to use calories that you’ve already consumed because fat is stored as energy in the body. As a result, you’ll be able to shed pounds as your body fat percentage drops. ‌ ‌ 

It is a bronchodilator, so when you take clenbuterol, your airways are widened. Asthma patients can benefit from this. By increasing the flow of air around the body, athletes can increase their stamina. So that you can work harder and better, there is more oxygen available. ‌

Clenbuterol is frequently combined with anabolic steroids or growth hormones by those looking to shed pounds or improve their performance. 

Clenbuterol has been shown to promote muscle growth and repair in mice and rats, while also preventing muscle atrophy. 

Muscle mass is gained at the expense of fat mass, according to research done on livestock. This is part of the repartitioning process. Clenbuterol was found to increase the expression of genes associated with various muscle components and fat metabolism in horses when given long-term at high doses.

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Clenbuterol Dosage

Many athletes and bodybuilders use clenbuterol in a cycle that alternates periods of on and off use. 

If clenbuterol is to be used in this manner, it might mean taking it for two days and then stopping for two days, or perhaps taking it for one week and then stopping for another. 

Depending on factors such as gender and tolerance, the dosage can be either taken orally or intravenously. 

There are dangers associated with each approach. Scarring and air bubbles can form in the blood when using injections versus tablets, while the liver can be affected. 

In Europe and Latin America, a daily dose of 0.02–0.04 milligrams (mg) is recommended to open up the airways in cases of asthma.

Clenbuterol Benefits

In the off-season many gym rats accumulate body fat in the process.

In order to reduce their body fat percentage, people take powerful fat burning agents like clenbuterol. However, clenbuterol isn’t the only fat burner available. It can be used in combination with other products to get even better results.

The benefits of using clen can be numerous. Some common benefits include the ability to lose weight and burn calories, promote muscle growth, and increase energy.

You may not think it’s possible to use a fat burner without exercising, but Clenbuterol has a side effect of increasing your metabolism and making it easier to lose weight.

Clenbuterol is a powerful fat burner that first stimulates the central nervous system with the help of the guarana extract. It then causes a release of adrenaline and body heat that helps you burn fat.

The body reacts to clenbuterol by elevating its metabolic rate, and this can lead to massive amounts of weight loss. 

Clenbuterol Side Effects

Clenbuterol Side Effects

There are numerous side effects associated with the use of clenbuterol, which has resulted in it being banned in a large number of countries. 

Adverse reactions to amphetamines can be expected, including: 

  • anxiety 
  • shaking 
  • headaches 
  • sweating
  • Increased body temperature 

An irregular and often fast heartbeat and high blood pressure are among the side effects of clenbuterol’s use on the body’s cardiovascular system. 

Cardiac hypertrophy can be caused by the drug’s increased heart rate and dilation. As a result of this abnormal growth, heart attacks and death are possible. This is known as hypertrophic cardiomyopathy (HCM). 

In addition, clenbuterol contains dopamine, which is commonly referred to as the reward hormone. Addiction is strongly linked to the release of dopamine in the brain. Clenbuterol is highly addictive. 

Animals intended for human consumption cannot be given clenbuterol in many countries. 

Clenbuterol-tainted meat sickened 140 people in Spain in 1994. The same thing happened to 336 Chinese people in 2006 after they consumed pork that had been tainted with the toxin. 

Clenbuterol has been linked to a decrease in potassium levels in the body. To compensate for the loss of potassium, those who take it as a drug may also eat a lot of bananas. 

Clenbuterol is frequently used in conjunction with a low-fat, high-protein diet to help athletes improve their performance.

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Clenbuterol Cycle

Many users begin with a lower dosage and gradually increase it every third day to extend the positive effects of clenbuterol. 

Only if the side effects are manageable should a person continue to increase the dosage. 

It is possible for one user to complete a 30-day clenbuterol course with a peak of 120mcg, while another user may experience severe side effects of 80mcg/day (and have to cut their cycle short). 

Beta-receptor downregulation is the primary cause of clenbuterol cycles lasting less than six weeks. 

As a result, the benefits of clenbuterol are only felt for a short period of time before the body’s temperature returns to normal, causing fat burning to cease. 

Cycles of clenbuterol for 2 weeks on, 2 weeks off, or even 2 days on/2 days off are popular among some users.

Where to Buy Clenbuterol

Where to Buy Clenbuterol

In spite of what you may think, it’s easy for Clenbuterol to be purchased illegally across the globe. 

The powerful effects of Clenbuterol made it a banned substance in bodybuilding competitions around the world. 

Despite the fact that Clenbuterol is prohibited in many countries, it can still be purchased on the black market without a valid prescription — indeed, this is what most clen users do. 

The black market is where some people buy Clen, while the legitimate anabolic stores online are where others get Clen cheaper. 

Clenbuterol users should, in my opinion, carry a doctor’s prescription with them at all times to ensure that they are not breaking the law. 


Clenbuterol is an extremely powerful drug, and the majority of users will experience a variety of side effects as a result of taking it. 

Since it is a strong fat burner, and it can be used in conjunction with other fat burning drugs to achieve maximum results. Because of the long-term benefits of this drug, it’s important that the user’s body is in a healthy condition before they start taking it. The majority of people who take Clenbuterol will experience a noticeable increase in energy, and the results can be noticed after a week of use. 

Users of Clenbuterol should only take it for a maximum of 2 weeks at a time. After that, the body will start to adapt to the drug, and the fat burning will slow down. If you’re interested in taking Clenbuterol to aid in your weight loss or bodybuilding program, it’s important to remember to take precautions because Clenbuterol is a powerful drug that is not something anyone should use casually.

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