Clenbuterol review – Benefits and side effects (updated July 2019)

Clenbuterol Overview

On June 15th, 1978, the Food and Drug Administration gave a German-based company permission to treat horses suffering from respiratory illness with a new stimulant drug called Clenbuterol. Since initial testing, farmer’s began using the drug to increase the muscle to fat ratio in poultry, cows, and pigs. The use of Clenbuterol in livestock increased the size of livestock while reducing the amount of feed need to sustain the animals.

In 1988, this new revelation leads farmers to a larger profit margin by making more money off their livestock and reducing their cost to raise them. However, human consumption of meat containing Clen leads to illness in large portions of the population. Without the ability to limit the amount humans would consume from meat, the US and EU prohibit the use of Glen in food-producing animals.

Clenbuterol approved by the FDA in several countries for the treatment of asthma; except in the US where the FDA did not approve of the use of Clenbuterol. The US failed to approve Clenbuterol because they had no need for other asthma medications when there are a plethora of success treatments already available. Despite the backlash Clenbuterol received during the FDA’s investigation into the rightful use of livestock, it’s become one of the most commonly used fat burning tool across the world. In fact, it’s used by competitive athletes, anabolic steroid users, and users who don’t use steroids but are looking to burn excess fat due to its fat loss properties.



How Does Clenbuterol Work

Clenbuterol is known by many names including Clen, Spiropent, Clenbuterol, Ventipulmin, Clenbuterall, and others.

Clenbuterol belongs to a class of drugs called Sympathomimetics and has structural similarities to Epinephrine. Deeming it the nickname, cousin of Epi. In regards to respiratory disorders, Clen works by relaxing muscle tissue and smoothing them out to improve the users breathing.

For fat burning purposes, Glen works in a similar fashion to treat respiratory disorders. It affects focus on the sympathetic nervous system as a beta-2 selective, affecting only one of the beta receptors instead of all three subsets. As Clen begins to attach to the nervous system, it allows the user’s body to transport more oxygen to their cells. With more oxygen to the cells, muscles become stronger and the user experiences an increase in their endurance.

In addition, Clen speeds up the user’s metabolic process almost 10 fold. It does this by stimulating the user’s fat cells and increasing their body’s ability to break down triglycerides. When these triglycerides break down, they’re formed into fatty acids. When they form into fatty acids, a process called fatty acid oxidation takes place acting as the second phase of weight loss. The fatty acids will then travel to various cells and then to the mitochondria where they will be burned off. Resulting in a significant amount of weight loss.

In this process, the body then begins to burn excess energy causing the user’s body temperature to rise. Typically, users will experience an increase of 1/2°F to 1°F in body temperature. This rise in temperature is very subtle and usually goes unnoticed by the user. Having this slight increase in the body’s core temperature, the body’s ability to burn more fat at a faster rate.

This entire process allows the body to burn off stored fat in the body at a faster rate. Giving users better gains in a shorter period. However, in order for users to see the best results while using Clenbuterol, they’ll need set up a regular workout routine to combine with their Clen cycling schedule. Even more so, users will still need to watch what they put in their body and keep up a healthy diet to get successful results. Clen’s used to boost the effects of diet and exercise not replace them completely.

The use of Clenbuterol’s typically seen during a pre-contest phase or during a weight loss or cutting cycle. It’s uncommon to use Clen during a bulking phase or during the off-season. However, some users have had success using Clen during a bulking phase. It helps them prevent weight gain during this phase, usually due to the higher calorie requirements. Use of Clen during a bulking phase usually doesn’t produce results in the mass majority of users.

crazy bulks

Benefits Of Using Clenbuterol

There’s a proven record of the benefits users received when using Clenbuterol. The main benefit centers around Clens ability to burn fat in a shorter time frame when combined with diet and exercise. However, Clen doesn’t focus solely on its fat burning capabilities. In fact, Clenbuterol aims at boosting every user’s overall well-being including the user’s brain function. In fact, Clen gives users a better mental clarity that allows them to focus on their daily tasks, improve their mood, and boost their overall cognitive functioning.

Aside from boosting mental clarity, users will also experience an unstoppable amount of energy without causing the jitters commonly seen with caffeine and other stimulants. This gives users the chance at being fat burning machines with the ability to do an intense workout and finish all of their daily tasks without feeling drained. In addition, this new-found energy does not affect the user’s ability to get a restful nights sleep. Make sure to check our reviews on other legal steroids anadrol, deca durabolin, and winstrol.

In addition, Clen offers many other benefits that a lot of users may not know about. For example, Clen allows users to have better and longer workouts by increasing strength, and endurance levels This allows users to make better gains and boost their muscle mass faster while spending less time at the gym. In addition, Clen causes the users metabolism to works at a faster pace allowing them to keep up their ideal weight and keep their gains until their final goal’s reached. A faster metabolism also plays a role in increasing energy and a boost in the user’s overall mood.

Users will also benefit from Clen in regards to recovery time. After every intense workout, the body will begin the recovery phase of the process. When taking Clen, that recovery time’s cut in half. Allowing users to workout more often and experience less pain and sore muscles. These sore muscles would otherwise inhibit the user’s ability to perform a quality workout. A better recovery time also allows users to build more muscles at a quicker rate than if they had to endure a standard recovery time.

Another benefit of taking Clen revolves around how convenient it is. It doesn’t take weeks for users to see their results like most other weight loss supplements or steroids. Clen begins to work immediately and users can expect to see results in less than a day. A rise in body temperature occurs almost immediately, energy increases, and users will begin to feel eager to hit the gym more than ever before. In addition, people who use Clen with certain steroids will enjoy the benefit of lowering their steroid dose and usage. Since Clen has Anabolic properties, there’s no need to continue higher doses of anabolic steroids. All around reducing the negative side effects that are commonly associated with regular, high dose steroid use.

Despite its anabolic properties, Clen is not a steroid. It has a smaller side effect profile than steroids and even other fat burning supplements. The small tablet size makes them easy to swallow and doesn’t cause a disturbance to the users daily routine. It’s one of the few fat burning supplements that offer a wide range of benefits without risking long-term side effects. Plus, Its available for both men and women of all fitness levels.


How To Take Clenbuterol

Clenbuterol is available in pill form, usually administered about 45 minutes before the user’s scheduled workout. Always take each dose with a full glass of water every time you take a tablet. All Clenbutrol users will need to take their dose every day for two weeks and then stop for two weeks. Better known as the two weeks on two weeks off cycle. Additionally, It’s important to start Clenbuterol at the lowest possible dose and then taper your way to a dose that’s most suitable for you. The most effective doses for men range between 60 mcg up to 100 mcg and women tend to see the best results between 10 mcg to 40 mcg. It’s important that users do not exceed 200 mcg per day.

During the first two dosing weeks, users should start with one 20 mcg tablet per day. One the next two-week cycle, users can increase their dosing to two 20 mcg tablets per day. Users can taper up to 200 mcg a day by increasing their dose with every two-week cycle and separating doses into three even increments. To make dosing easier to remember, take each dose close to the same times you’d eat breakfast, lunch, and dinner time is helpful. Due to having a half-life of 36 to 48 hours, users will get the best results if they take their doses at the same time every day. This will keep the amount of Clenbuterol in their body at a constant level.

Regardless of whether a user is looking for a quick weight loss supplement or are training for a competition, users should not use Glen permanently. It’s recommended that Clen’s only used for 16 weeks in a 12 month period. Users who are planning to compete several times in twelve months should spread their usage out evenly and stay as close to 16 weeks as possible. Clenbuterol should not be used by anyone under the age of 21 as it may cause harmful and unwanted side effects. Users can find more information about dose options by clicking here.

Clenbuterol infographic

Potential Clenbuterol Side Effects

As with any medication, there are some side effects associated with Clenbuterol. Those with underlying heart conditions or blood pressure problems should avoid taking this product. All users should consult with a physician before starting Clen and discuss any side effects they may experience during their treatment. Most side effects are common during the first few days of use and will subside when your body adjusts to the medication.

The most common side effects experienced when taking Clen include Headaches, nausea, and an increase in appetite. Users may also experience overheating, abnormal sweating, and dizziness. Other common side effects can include dizziness, Anxiety, insomnia, muscle cramps, and muscle tremors that typically appear in the hands. Side effects from using Clen’s greatly reduced by only using it in two-week increments. In addition, side effects can also be reduced if users use the medication properly and by following the directions provided. Other common side effects include:

– A faster than normal heartbeat
– Awareness of heartbeat
– Hot flashes
– Chills
– irregular menstrual cycle in women
– Decreased appetite
– Feeling Nervousness or on edge

Unfortunately, some users may experience more serious and bothersome side effects such as blood pressure problems, cardiac hypertrophy, and heart muscle necrosis. While these side effects are rare, users should stop use immediately and consult with their primary care physician if they occur. For more information about Clenbuterol and potential side effects, click here.


Interaction With Clenbuterol

Currently, there are no known interactions between Clenbuterol and other medications or food. However, interactions may still occur. As with adding any new medication or supplement to your daily intake, it’s important to discuss any interaction Clen may have with your current medications.

It’s important to take a list of all your medications to your primary care physician. This will allow them to get access to any interactions that may occur. Some medications may need to be adjusted or stopped altogether to avoid interactions.


Clenbuterol’s been used for a variety of purposes, displaying successful results across the board. However, Clen’s become one of the most sought after fat burning aid for decades, with users achieving impressive results all across the world. From a professional bodybuilder to those looking to lose a few extra pounds, Clenbuterol’s the go-to choice for both men and women for burning fat and getting massive gains.


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