Clenbuterol Benefits, Uses, Dosage Cycles, And Side Effects | Ultimate Guide 2021

Clenbuterol Review


Clenbuterol (Clen) is used as a fat-burning drug by bodybuilders and celebrities.

Known as a “cousin to ephedrine”, it aids weight loss by stimulating beta-2 receptors as a beta-2 agonist.

This causes the mitochondria to release more heat, thus increasing the body’s core temperature and the metabolic rate of the person – leading to weight loss.

The drug was never approved for use by the US FDA, although it is approved to treat asthma in some countries.

It has a reputation for negatively influencing thyroid function.

The problem with oral Clenbuterol tablets is the potential for side effects. Not just the annoying ones that come with stimulants such as feeling jittery, having shaky hands, and sweating.

But also more serious side effects, some of which can even lead to death, such as:

  • High blood pressure
  • Cardiac hypertrophy
  • Heart problems
  • Over-heating
  • Irregular heartbeat
  • Trembling
  • Panic
  • Anxiety
  • Headaches
  • Nausea

If you’re about to start a cutting cycle or you’re looking to take something to help you lose weight, why not try a legal Clenbuterol alternative such as CrazyBulk Clenbutrol.

This legal supplement replicates the thermogenic and performance-enhancing properties of Clenbuterol HCL but using all-natural ingredients that are safe and legal. Buy Clenbutrol online here.

Legal Clenbuterol Reviews

Clenbuterol cycles are typically taken during the cutting phase of a bodybuilder’s season.

It’s been known to help burn fat and improve physique for that hard, toned look.

That’s why celebrities like Lindsay Lohan, Britney Spears, Nicole Ritchie, and Victoria Beckham have used it to lose weight.

What is Clenbuterol though?

Clen is also known as Dilaterol, Spiropent, Astralean, Ventipulmin, and others is a bronchodilator.

It has been used as a treatment in both human and veterinary medicine for breathing disorders and as a decongestant, and it is a key ingredient in the sympathomimetic amine known as Ventolase.

It is scientifically known as (RS)-1-(4-Amino-3,5-chlorophenyl)-2-(tert-butylamine)ethanol or the chemical formula C12H18Cl2N2O.

It is most commonly sold in the Clenbuterol Hydrochloride format in tablets of 20mcg or 40mcg dose.

It can be found in pills, liquids, injections, gels, drops, and spray pens.

According to studies on Pubchem, it is predominantly used today as a weight loss and diet pill, although it is not legal for these purposes. It has been referred to as the “Size Zero” pill due to its use in Hollywood among celebrities wanting to burn fat.

Clenbuterol’s effects are similar to those of ephedrine – another stimulant diet pill that promotes weight loss by increasing thermogenic metabolism.

As a sympathomimetic amine, it increases the activity of the sympathetic nervous system, causing the body to burn more energy and calories than normal.

It is similar to the beta-2 adrenergic agonist called Albuterol (Salbutamol), which is often used as an asthma medication.

Clenbuterol Weight Loss Benefits

One of the main off-label uses is for weight loss.

Below is a summary of the benefits of Clenbuterol for fat loss and cutting cycles:

  • Boosts energy levels
  • Increases calorie burning through thermogenesis
  • Improved motivation for working out
  • Suppresses appetite
  • Preserves lean muscle tissue
  • Boosts athletic performance and power output
  • Increase blood flow and oxygenation
  • Promotes lean mass and a ripped physique
  • Helps with fat loss

Many people ask does Clenbuterol give you energy? The answer isn’t exactly clear, but the alternative supplement Clenbutrol by CrazyBulk is used for energy and endurance.

In fact, it helps your body use your stored fat for its energy needs, helping you burn that extra belly fat.

CrazyBulk recommends taking three capsules with water approximately 45 minutes before your workout and claims you will see results in 30 days.

bulking ans cutting steroids

How Does Clen Works?

Clenbuterol works by stimulating beta2 receptors in the body that control the rate of metabolism and other hormones. It imitates the effects of the body’s natural adrenaline (epinephrine), resulting in increased breakdown and burning of fat.

Specifically, it causes an increase in thermogenesis. This is the process by which the mitochondria in your cells convert glucose (sugar) and lipids (fat) into energy in the form of heat.

Our bodies are constantly burning calories and fat to make heat and keep our internal body core temperature stable.

The principle behind taking thermogenic fat burners like clen is that they raise the internal temperature by a small amount, causing the body to burn more fat.

This helps to increase daily caloric expenditure. When paired with a proper diet plan and exercise regimen, weight loss results can be quite rapid.

As a stimulant, Clen also is reported to decrease the appetite in user reviews and testimonials. This makes it a multi-faceted weight loss drug.

What makes it popular among bodybuilders and physique athletes is that it has an anti-catabolic effect. This means that it promotes weight loss while protecting hard-earned lean muscle mass.

While this compound is only very slightly anabolic, it has been shown in studies to increase non-fat body mass. Using a clenbuterol cycle with other cutting steroids such as Anavar or Winstrol is common among elite athletes.

Compare Clenbuterol HCL with Winstrol to discover what the best approach is for you.

However, there can be serious negative side effects if this product is used in excess. For this reason, the drug has now been banned in the USA for human use and it is only used for animals now.

Similar laws exist in other countries, including most countries in Europe.

The World Anti-Doping Agency has also banned the substance.

Clenbuterol Cycle Results

When used correctly, the weight loss effects of Clen can be dramatic. Individuals have reported dropping 10 – 20 lb of fat in one month with this supplement. It helps bodybuilders get leaner after a bulking cycle.

By preserving muscle, it provides a solid foundation for further weight loss, even after the use cycle has ended.

By drawing on stored fat as fuel, it works to help users slim down and to have the energy they need to stick to their training regimens.

Increased mitochondrial body heat causes sweating that, with proper hydration, can help to shed water weight and eliminate excess toxins which contribute to weight gain.

Perhaps the most dramatic effect of Clenbuterol HCL is the way it enhances the user’s aerobic capacity and basal metabolic rate or BMR.

When you add Clen as a supplement to your fitness regimen, you may see a sharp increase in both your lung capacity and your endurance.

This is because it opens the bronchial tubes while increasing the amount of energy available to your system for use.

This will enable you to burn more calories during a workout than you could on even your best days at the gym.

It is often used as a pre-workout supplement, for this reason, to promote high intensity during exercises.


Best Dosages

There is no set dosing for Clen.

The most common regime is a two-week cycle beginning with 20 mcg increasing to 140mcg.

Then you decrease it back down to 20 mcg at the end. This is a cycle settled on by a majority of competitive bodybuilders.

For safety, it is recommended that those who are unfamiliar with the effects of the drug begin with more conservative dosing as below.

Clen Cycle

The most common Clen cycles in descending order are the Two Week Cycle, the Four-Day Cycle, and the Sixteen Week Cycle.

Most professional bodybuilders looking to maximize the benefits of Clenbuterol say the cycle they prefer is the Two Week Cycle.

These competitive athletes know first hand that, while the drug is an aid to building a lean, defined physique – the amount of work necessary for it to have maximum effectiveness can only be sustained for a limited amount of time.

The dosages below may be too high for some individuals – especially for women. Individuals who are significantly overweight should also avoid using dosages this high.

How To Use Clenbuterol Two Week Cycle

This cycle starts at a low dose and you increase the dosage every day for two weeks.

Week 1Week 2
Day 1: 20 mcgDay 8: 120 mcg
Day 2: 40 mcgDay 9: 100 mcg
Day 3: 60 mcgDay 10: 80 mcg
Day 4: 80 mcgDay 11: 60 mcg
Day 5: 100 mcgDay 12: 40 mcg
Day 6: 120 mcgDay 13: 20 mcg
Day 7: 140 mcgDay 14: 20 mcg

Remember that Clen HCL will be most effective when used in a stack with other complementary fat-burning substances or ingredients.

Some popular stacks with “Bute” include HGH, Yohimbine, Testosterone, Cytomel T3, and Ketotifen. In particular, Ketotifen inhibits one of the mechanisms that causes many people to develop a tolerance to Clen.

Sometimes bodybuilders stack Taurine and Potassium together with Clen to offset some of the side effects.

PCTs with drugs like Nolvadex and Tamoxifen are usually not necessary with Clenbuterol.

How To Take Clen HCL

It’s important to remember that limiting yourself to sixteen weeks a year on the drug is crucial to avoiding long-term side effects that could potentially damage your health.

You should think of it as being similar to a high octane fuel that should be used sparingly. You should only use it to get you over a plateau in your progress.

Or to lean out before an important event such as a competition, performance, audition, or another high-pressure event where the extra edge can make all the difference.

Another common mistake users make is to assume that the drug isn’t working once the feeling of being energized goes away. This leads some people to make the mistake of taking much more than they should.

Most people who use it are aware of its stimulating effects, and they expect to feel as if they have had five espressos every time they take it.

But like any potent stimulant drug, the psychoactive effects will fade over a period of use as you build a tolerance.

Despite this, the drug will still work to boost your mitochondrial functioning, turning your metabolism up and burning fat for fuel.

Do not mistake a lack of the feeling of stimulation for evidence that the drug is not working. It’s important to keep your doses as low as possible for maximum sustainability.

Keep in mind that any real fitness commitment is long-term and lifelong. Using any substance to try and achieve fast and easy results at best will only yield short-term results.

You have to ask yourself if the potential long-term risks are worth it.

There are many safer ways to lose fat, and supplements like Garcinia Cambogia or Superclen can be a much safer and healthier alternative if you’re looking for something to take to give you a bit of help.


Clenbuterol Side Effects

There is a long list of side effects that over-use or careless use of Clenbuterol Hydrochloride can cause. There are short and long-term effects, most of which can be avoided by careful dosing and strict self-monitoring.

What are the side effects of clenbuterol?

Short Term Effects

  • Hypertension/high blood pressure
  • Anxiety
  • Nervousness/ restlessness
  • Muscle cramps
  • Insomnia
  • Increased heart rate
  • Palpitations
  • Tremors (shakiness in hands)
  • Dry mouth
  • Vomiting
  • Headaches
  • Sweating
  • Breathing difficulties
  • Depletion of Potassium stores

Short-term side effects usually diminish once the drug has been eliminated from the system. Long-term side effects, however, are less well understood in humans since the drug has only been on the market for thirty years at most.

Long Term Effects

  • Enlarged heart
  • Heart degeneration
  • Exacerbation of existing heart conditions
  • Increased risk of bone fractures
  • Increased collagen synthesis in the cardiac system

Another adverse effect that is sometimes reported with regular usage is muscle cramps. This can occur if the user is not getting sufficient water during the day while using Clenbuterol.

It is especially prominent among bodybuilders who are engaged in heavy weight lifting while using this product.

To avoid cramping, it is recommended that the user drink lots of water with this drug and stay away from caffeine and other substances that can induce dehydration.

You may also want to add a taurine supplement to your stack as this can help to relax muscles.

The potential side effects are not significantly different in men and women. The differences have more to do with the particular vulnerabilities of each gender than they are to do with Clenbuterol.

Men, for example, are more prone to hypertension than women, and hypertension can be exacerbated by stimulants like this.

Effects of Clenbuterol on sperm count

Abuse of Clenbuterol can cause infertility in men. Sexual dysfunction and a reduction of sperm count are also possible if Clenbuterol is abused or is of a low grade.

When Clenbuterol HCL is administered in the blood it reaches the beta-2 receptors in the blood and reacts with them; causing an increase in the metabolic rate of the anatomy.

As such, the temperature of the body also rises, which may kill sperm cells and lower sperm count.

However, there is no conclusive, empirical data that has linked Clenbuterol use to lowered sperm count, although side effects such as a yellowish tinge of ejaculatory fluid have been reported by some bodybuilders.

Women are more vulnerable to alterations in their hormonal makeup, which can be affected by accelerating metabolism.

Also, people with very high BMIs of greater than 35 (clinically obese), should not use this drug as it may cause unsafe changes to heart function.

While there can be benefits to taking Clenbuterol pills, it is important that they be used safely to ensure a positive outcome for the user.

Is Clenbuterol Legal to Buy?

There are many in the US who mistakenly believe that Clenbuterol is illegal to buy. In fact, this drug is not a controlled substance currently in the United States.

In this way, Clen is different from other anabolic steroids such as Dianabol, Deca Durabolin, or Anavar. This means that possession of the drug is not illegal and you cannot be prosecuted for buying it

However, it has been banned by the FDA in drugs and supplements intended for human use. That means there are few legitimate ways to get your hands on it, and you’ll be forced to look to the black market and underground labs to buy it.

Foreign manufacturers in Thailand and other countries have cropped up to meet the demand, but the ever-present danger is a fake low-quality product.


Why is Clenbuterol banned?

Clenbuterol is banned because of health concerns and consumer safety.

The only legitimate and legal reason to purchase Clen is for veterinarians to treat asthma and other breathing problems in cows and other livestock, but even this is not legal in the US anymore.

Typically, liquid or gel formulations are used for these purposes.

These types of Clenbuterol products are not safe for humans. They are not made to pharmaceutical grade standards and oftentimes contain dosages that are significantly higher than a typical 20 mcg pill would contain.

For this reason, even though it is technically legal to buy Clenbuterol online in the USA, most users will not be able to purchase it in pill or tablet form.

However, there are Clenbuterol supplements (do not contain the drug) such as Clenbutrol that are legal or Clenadrol X, which are safe alternatives for bodybuilders to use in their cutting cycles.

Laws in other countries like Canada, Australia, the UK, Ireland, Italy, and New Zealand may be different as of 2016.

In some countries, this product may be available as an over-the-counter asthma remedy, while in others – such as China and Russia – it requires a prescription to purchase it legitimately.

It is important to determine the legal status of this product before you decide to purchase it online or have it shipped to where you live from another country. Clenbuterol laws in Asia and the Middle East will differ markedly from the USA, for example.

Some of the most common brands of Clenbuterol HCL include:

  • Ventilan
  • Clenbutaplex
  • Mucosolvan Compositum
  • Spasmo-Mucosolvan
  • Monores
  • Astralean
  • Mucospas
  • Ebromin-P
  • Sekretovit Ex
  • Clenox Malay Tiger
  • Airum
  • Ventoliber
  • Clenodex
  • Brogal Compositum
  • Broncotosil
  • Broncoterol
  • Fludexol-CL
  • Novegam
  • Clenbuterol hydrochloride tablets
  • Oxibron
  • Clenbuteric-20
  • Ciccone Clenbuterol HCL 40 mcg
  • Clenbutaxyl

Less common brands of Clenbuterol tablets include:

  • Spiropent
  • Respulmin
  • Prontovent
  • Risopent
  • Ambromuco Compositum
  • Oxyflux
  • Loxorol
  • Clenasma
  • Clenotabs by Phoenix Pharmachem
  • Ventipulmin
  • Contrasmina
  • Clen Max 40mcg
  • Spiropent Mite
  • Balsibron-C
  • British Dragon
  • British Dispensary
  • Broxofar Compuesto
  • Mucosolvon Compositum
  • Ventolase
  • Clembumar
  • Genitec Pharm Clenbuterol
  • Venti Plus
  • Clenbutol
  • Clembroxol
  • Contraspasmin
  • Septacin Ex
  • Tonil
  • Clenbuterol
  • Spasmo-Mucosolvan
  • Broncodil
  • Meditech
  • Ventoliber
  • Thaiger Pharma Airclen

There are also hybrid blend products on the market, such as Icyplex that combines bark extract from the Yohimbe tree with Clen.

Ambroxol Clenbuterol combines Clen with another drug that aids in the secretion of mucus from the lungs.

Who Has Used Clen?

There have been a number of high-profile stories in the news of celebrities and professional athletes abusing and taking advantage of the Clenbuterol benefits for fat loss.

Because it is a sympathomimetic amine, it can have significant enhancement effects on athletic performance abilities.

For this reason, it has been banned by a number of sports and athletics organizations including the IOC, WADA, NCAA, the NHL, the IOC, the MLB, and the AFL.

Clenbuterol Hydrochloride has been used by New York Mets pitcher Guillermo Mota, American swimmer Jessica Hardy, Spanish cyclist Alberto Contador, Toronto Maple Leaf’s hockey player Carter Ashton and many more.

Recently, two players in the Australian Football League that play for Collingwood were found to have used this drug and they are currently awaiting a ruling.

Previously, the Mexican football team was found to have tested positive for the drug. They claimed that this was due to unintentionally eating meat that had been contaminated by the ingredient.

Celebrities also Clenbuterol pills for weight loss cycles, and it can be taken by men or women.

But the bottom line is that due to the risk of potential consequences to your health, it is recommended only to use this belly fat burner if you have a legitimate prescription for it and are using it according to your doctor’s recommendations.

Clenbuterol has a half-life of 36-48 hours and peak plasma concentrations are achieved 2-4 hours after dosing.

It is the key ingredient in other products like Clenbuterol.

It’s commonly misspelled on the internet as Klen 60, Clenbunal, Clean Petrol, Clean Patrol, Cleanbuterol, Clembuterol HCL, Clenbutorol, Clenbutanol, Clenbuteral, Klenbuterol, Clebuterol, Clenbuter, Clenbut, Clenbetrol, Klen buterol, and Cleanbutrol.

If you want to use Clenbuterol for weight loss, there are safe, legal supplement formulations that you can buy instead to give you the same effective results for your cutting cycle. Regardless of what you take to help you lose weight, you need to be on a low-calorie diet to see results. Some say a low-fat diet, while others claim you should limit carbs.



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