The 7 Side Effects Of Clenbuterol You Need to Know About Or Else..

Clenbuterol (Also known as ‘Clen’) is an extremely powerful stimulant that can raise your metabolic rate and help your body to burn fat much faster. Athletes and bodybuilders take this miraculous weight loss drug to either lose fat whilst preserving existing muscle or to enhance their performance levels. Now I hear you ask, does Clenbuterol have side effects?! I hate to be the bearer of bad news but the answer is yes, and they range from extremely serious and potentially life threating, to highly embarrassing and uncomfortable.

The 7 Worst Side Effects of Clenbuterol

#1 High Blood Pressure

Because this drug is a stimulant, it will of course rapidly increase your heart rate, which can cause severe headaches and lead to very serious health issues. During a cycle of Clenbuterol, consult your GP regularly for blood pressure checks because if it remains high for too long, you could risk causing irreparable damage to your heart and kidneys.

#2 Insomnia

The stimulant effect of Clen can last for 30-40 hours, meaning you will likely struggle to get to sleep. Although your body will adapt to the drug over time, a lack of sleep will deprive you of growth hormone essential for muscle building. It will also leave you feeling lethargic and weak – not to mention dramatically impair your concentration and focus.

#3 Muscle Cramps

Taurine is a vital amino acid that contributes to overall muscle size and strength and, regrettably, Clenbuterol draws it all out of your muscle tissue. Depleted Taurine levels can cause painful discomfort in the form of muscle cramps, which can impair your recovery and performance levels.

#4 Nausea

Again, because Clenbuterol is predominately a stimulant, you may experience nausea as a result of using this drug – particularly if you are prone to similar effects from other stimulants such as caffeine. You may also suffer a loss of appetite, which in turn can affect your recovery and decrease intensity in the gym.

#5 Tremors

A common side effect of many effective stimulants, tremors occur because of elevated heart rates. Dosing correctly is crucial because the only way to limit this particular side effect is to allow your body time to adapt to the drug — high doses when you start a cycle will leave you shaking and feeling jittery in general.

#6 Dehydration

Probably the most common side effect of Clen, dehydration occurs because of your increased heart rate, which causes you to sweat and lose significant amounts of water. Not only can the sweating be uncomfortable and embarrassing, but you can also expect to experience a dry mouth and further headaches. Keep yourself hydrated in order to reduce the risk of these effects – drinking around 2 liters or so a day should suffice.

#7 Palpitations/Irregular Heart Beats

If you feel like you are experiencing any kind of heart palpitations when taking Clenbuterol, consult your Doctor immediately to check if you have any kind of heart irregularity. Because of your drastically increased heart rate, this side effect is very prominent in those that use Clenbuterol, and it can lead to severe health complications, or even be fatal in worst cases.

Coming Off Clenbuterol Side Effects (Post Cycle)

Weight gain, increased bone fragility, and cardiac hypertrophy are all possible long-term side effects you may experience after finishing a cycle of Clenbuterol, with the latter being particularly frightening. This drug can increase the size of your heart and cause it to beat irregularly permanently – either one can potentially lead to a stroke or aortic rupture in the future.

Clenbuterol 40mcg Side Effects

Clen is most commonly sold in pill form in doses of 20mcg, however, there are a few brands out there that sell pills at a whopping 40mcg. Although mainly used in veterinary practices to treat larger animals for conditions such as asthma, some bodybuilders will push their limits and experiment with a higher dosage. The side effects of taking this more potent pill include all those I have mentioned above for the 20mcg capsules, but obviously at an even more extreme level.

Clenbuterol Side Effects in Women

Women should avoid taking any dosage higher than 20mcg because the fact is women are generally lighter than men leaves them more susceptible to side effects. They will experience many of the same cardiovascular effects as men when taking Clenbuterol, but they can also experience severe psychiatric effects (irritable moods, anxiety, addiction).

Clenbuterol Gel Side Effects

Clenbuterol can be purchased in gel form known as ‘Claire Gel’, but it is not approved for human use and was manufactured solely for treating large animals such as horses. Dosing Claire Gel properly can be very tricky because unlike pre-made pills, it is difficult to measure out correctly. Claire Gel still comes with all the same side effects as the pill form but is more dangerous because you could end up significantly amplifying those effects.

Clenbuterol Hair Loss

It is important to remember that Clen is not an anabolic steroid, it is simply a powerful stimulant designed to trigger weight loss. Therefore Hair loss – one of the most common and embarrassing side effects of steroids – will not occur on this particular drug.

Clenbutrol – Legal Steroid – The Healthier Option!

‘Clenbutrol’ sold by online retailer ‘Crazy Bulk’ is a 100% legal alternative to Clenbuterol that comes without any of the horrifying side effects and health risks. This product can reduce water retention and reduce fat quickly to achieve the same highly desirable lean, defined, and vascular look that Clenbuterol can produce. It is made up of purely natural and organic ingredients that increase your metabolic rate by stimulating thermogenesis, and it doesn’t affect any pre-existing muscle gained.
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  2. Nick Smith


  1. Hello..
    I’m 24 now my weight is around 75 I have too much fat in the stomach part belly…
    I wanted to build and loom slim for modeling.. so plz suggest me shall i take this clenbuterol capsules ???

    1. Hey Pratheek, i understand. The belly can be the hardest part to burn fat. Before using drugs you might want to consider using a natural alternative to clen like this

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