Clenbuterol Review, Results, Benefits and Side Effects

By Alex Woodrow | Legal Steroids

Sep 03

Clenbuterol Review – Is It Worth The Risk?

Although it is popular in the sports world, Clenbuterol is actually a medication. People with various breathing problems (most commonly asthma) use it because it relieves their suffering.

In sports environments, this drug is better known as a rapid weight loss remedy, although the results are contradictory and there is no consensus that the benefits of taking outweigh the negatives, and they (the negatives) are expressed in severe intoxication and side effects.

Models, as well as professional bodybuilders, use it to further help burn fat and prevent water retention from the body.

Continue reading below to find out all the potential benefits and side effects of using Clenbuterol. However, this substance is forbidden in the majority of countries. You can purchase the legal alternative instead – Clenbutrol. It has similar properties and effects and is the only alternative option that has received approval.

What is Clenbuterol?

Clenbuterol is known in bodybuilding environments as a powerful stimulant that melts fat, promotes muscle growth, and facilitates the build-up of quality muscle mass (See This drug also shortens the recovery period and has a significant anti-catabolic effect, which slows down the protein consumption of muscle cells.

Athletes often use Clenbuterol as an alternative to steroids because it has anabolic properties but to a lesser extent. It is no coincidence that some experts also call it the “non-steroid steroid.”

Unfortunately, the somewhat good news ends here. Although detailed and definitive scientific studies on Clenbuterol remain at an early stage, the information available on this medicament is not encouraging at all. It indeed has a positive effect on fat cells, but it also dramatically increases the size of the heart.

Clenbuterol is from the group of beta-2 agonists. These are powerful stimulants that break down in the liver. Its intake is thought to saturate and block specific receptors in the body. However, despite the initial excellent results in the beginning, after 2-3 weeks, the effect declines.

Furthermore, subsequent cycles of Clenbuterol never give you nearly as good an achievement as after the first cycle. However, it can relieve the tension in the smooth muscle tissue. When inhaled by asthmatics, this compound causes dilatation of the bronchial tract, dilation of blood vessels in muscle tissue and liver, insulin expression, and other effects (See

Clenbuterol is so strong that its doses are measured in micrograms. This makes the likelihood of a normal inadvertent or distraction dose becoming overdose quite high.

In such cases, unfortunately, the ultimate outcome is fatal. There are more than one or two incidents in the world of bodybuilding with Clenbuterol which resulted in death.

History of Clenbuterol

Although there is little information regarding the exact origin of Clenbuterol, the name was originally used several times in 1970. We have no knowledge of when the formula was found but we can imagine it was around this decade.

It was sold as dilaterol, spiropent, and ventipulmin in combination with the affectionately nicknamed “clen.” If you hear a mention of any of these names, they all relate directly to the use of clenbuterol.

Interestingly enough, while people use Clenbuterol to treat various respiratory problems in patients, it is not officially approved for human use by the FDA in America. However, it still enjoys a significant appraisal among people in Europe. There, it was allowed by the appropriate governing bodies in many countries.

The only legal application of Clenbuterol in the USA is as a horse medicine. This is because, during racing, a horse can swallow dirt which was pushed from the horses in front of it. This can potentially clog the airways and cause breathing difficulties and tears. Therefore, not only people in Europe use it as a medicine for breathing disorders. It is useful for horses as well.

With this said, if you are from America and wish to use it, you should turn your attention to Crazybulk’s Clenbutrol instead. It is the legal alternative which is allowed in the USA.



Benefits and Effects of Clenbuterol

Before we go in-depth, here is a small list of the most popular benefits of using Clenbuterol. Also, if you feel like this medicament is the right one for you, you should remember that it is illegal in most countries as a supplement.

Instead, you should try out the legal alternative called Clenbutrol. It does sound similar, right? That is because this is the one and only approved alternative to the illegal substance. This means that it has similar positive effects but fewer side effects and negative impact on your body. Now, here are the popular benefits of Clenbuterol in the world of sports:

  • Fat cleansing
  • Facilitated the accumulation of quality muscle mass
  • Significant shortening of the repair process (slows down the consumption of protein by muscle cells)
  • Promotes the disposal of excess water, even from the hardest to reach places
  • Gives a lot of energy to perform more intense workouts, even with a minimal dose

Before athletes found the potential of Clenbuterol, it was used as a medicament for diseases such as asthma. It continues to be used today and is the only way to legally obtain it. Here is how it helps people with certain health conditions:

  • Pharmacodynamics

The mechanism of action of Clenbuterol on the bronchi and lungs is to relieve spasms, reduce mucus formation, reduce its viscosity and improve excretion, provided by the active substance – clenbuterol hydrochloride, which is 4-amino-alpha-methyl-3,5- dichlorobenzyl alcohol (See

The beta-2-adrenergic receptors of Clenbuterol exert the same effect as adrenaline and norepinephrine, that is, excite them.

When it interacts with a membrane enzyme, the concentration of cyclic adenosine monophosphatase – cAMP increases in the cells and the protein kinase is inactivated.

As a result, there is a delay in the transmission of the inflammatory signal to the immune cells of the bronchi and lungs and the relaxation of their muscle fibers. This drug also affects the beta-1-adrenergic receptors of the heart and the beta-3-adrenergic receptors that are localized in adipose tissue.

Thus, Clenbuterol can really be used for weight loss. It acts at the expense of stimulation of beta-3-adrenoreceptors. This leads to a metabolic effect – increased heat generation and activation of lipolysis.

In addition, there is an anabolic effect which is conditioned by the positive effect of proteins. For this reason, in sports medicine, the drug is considered doping and is banned.

Clenbutrol, however, is completely legal and allowed worldwide. Save yourself all the troubles and get the alternative option.

  • Pharmacokinetics

Following internal administration, the gastrointestinal tract absorbs the Clenbuterol which then enters the systemic bloodstream. Meanwhile, its bioavailability at this point is 89-98%.

The half-life lasts more than 24 hours. At the same time, residual levels of the active substance remain in the blood 48 hours after a single administration.

Clenbuterol is broken down in the liver by the glucuronic acid and the excretion of metabolites happens through the kidneys.


Side Effects of Clenbuterol

Even when you use Clenbuterol is a medicine, it can cause side effects. This medicine causes similar symptoms as if the body released adrenaline.

Here are the majority of possible side effects in short. You can read about the most important factors in depth shortly after the list:

  • Limb shaking
  • Dizziness
  • Headache
  • Tension
  • Insomnia
  • Increased heart rate
  • Pain in the heart area
  • High blood pressure
  • Skin breakages
  • Urinary disorders
  • Difficulty breathing or wheezing
  • Muscle cramps and cramps
  • Severe sweating
  • Heart attack

Basically, Clenbuterol can cause symptoms such as palpitations, slight anxiety, and slight shaking of the fingers. This can lead to irritability or irritability. It is also possible to increase blood pressure.

Some athletes also report headache, heavy sweating, and sleep disorders. However, athletes can avoid sleep disorders if they take Clenbuterol no later than lunchtime.

As a rule, at the beginning of the course, the athlete will have a feeling of general irritability. The magnitude of these symptoms depends a lot on the value of the initial dosage. But these side-effects are temporary. They usually occur only at the beginning of the cycle with Clenbuterol and then disappear by themselves. The important thing is to last for the first 8-10 days.

Those who have no experience with Clenbuterol should start with a low dosage and slowly and evenly increase it over several days to allow the body to adjust.

In women, phenomena such as palpitations and shaking of the hands and body are more pronounced than in men. Therefore, women should use a lower dosage than men.

  • Athletes who have the following conditions should definitely not use Clenbuterol:

    • irregular or accelerated cardiac activity
    • individuals who have had a heart attack once
    • are suffering from severe thyroid over-function
    • who are pregnant

Both women and men may experience muscle cramps, especially during exercise. However, it seems that these spasms are only in the muscle that is currently being trained. If an athlete is on a carbohydrate-restricted diet, this triggers the automatic breakdown of glycogen in the muscles. If further glycogen is degraded by taking Clenbuterol or Ephedrine, convulsions may occur along with the lack of minerals.

Any athlete can control the side effects and their intensity to some extent. In order to do this, they should follow the dosages and administration practices.

There are no known long-term side effects, however. Clenbuterol lacks the possible side effects of anabolic steroids. Such are acne, hair loss, inflammation of the liver, thickening of the voice, or gynecomastia.

Dosages and How to Take Clenbuterol

The dosages are strictly individual, prescribed by a specialist healthcare professional. They should depend on how the body responds to side effects.

In the absence of side effects from taking Clenbuterol, men usually take 5-7 tablets a day and women 1-4 tablets a day. One tablet equals 20 micrograms and the safe upper limit is 120-140 micrograms for men.

Professional advice: Many of the side effects of Clenbuterol can be reduced if you do the following things:

  • By following the pyramidal regimen – starting with a lower dose and steadily increasing
  • By taking smaller amounts than recommended in combination with dietary supplements for fat burning (L-Carnitine, KLA, Thermogenic Fat Burner).

Clenbuterol loses its thermogenic effect 6-8 weeks after the first intake when your body temperature drops to normal.

Its anabolic and anti-catabolic properties disappear after about 18 days of its administration. The most effective method for taking Clenbuterol has been shown to be in a cycle – 2 weeks intake and 2 weeks rest. It is not recommended to take more than 12 weeks.

You can combine Clenbuterol with a large number of nutritional supplements. This way, you can enhance the desired effect and achieve faster results.

The combination with supplements allows you to take a much smaller dose. This way you can significantly reduce any unwanted side effects.

Final Thoughts

Now that you know everything about Clenbuterol, do you think it is worth trying or not? What are your thoughts? Is it rightfully legal in Europe or should they ban it like in the USA? After all, there have been quite a few incidents which resulted in death.

At the same time, if you follow the recommended doses or keep it to the minimum, you may experience the positive effects without struggling with any of the negative ones.

Overall, it appears that Clenbuterol may be useful for short-term usage. On the long-term run, however, it will have a steadily decreasing effect until you start experiencing only side effects.

Do you feel like you still want to try Clenbuterol but do not want to break the law? Or maybe you just prefer the safer option for your health? Once again, you have a safe alternative that will give you practically the same results.

Clenbutrol is the only safe alternative to Clenbuterol. It safely replicates the performance of the illegal supplement and will help you reach your desired results. Do not risk your health with something that causes death among athletes. Always choose the safe alternative options.

About the Author

Alex Woodrow has been a contributor for for over 10 years and has a deep passion for Male health and well being. Alex has studied chemistry at UCLA and has a thorough understanding of the supplements industry, product formulation and the science behind male health.

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