People taking clenbuterol for weight loss or performance enhancement often use anabolic steroids or growth hormones as well.
Studies on the efficacy of clenbuterol as a weight loss or performance enhancer in humans are quite limited, although many studies have been performed in animals and livestock:. A review of adverse reactions to clenbuterol reported to two poison control centers found that 11 of the 13 cases were due to clenbuterol use for weight loss or bodybuilding. When clenbuterol is taken to control asthma symptoms, the recommended dosage is between 0.
The medication comes in tablet or inhaler form for asthma treatment. Like many bronchodilators used for asthma treatment, you should use it as needed — up to the recommended dosage as opposed to regular daily use.
Clenbuterol used for weight loss or performance enhancement can be acquired as a tablet, liquid, or injection. People using clenbuterol for this purpose typically use between 0. The drug is often used off-label for weight loss or to enhance athletic performance.
Professional athletes testing positive for this drug can be disqualified from participating in competitive sports. This is a detailed, evidence-based review of the 12 most popular weight loss pills and supplements on the market today. Learn how to prevent asthma attacks. People use performance enhancers to improve their performance during high-intensity physical exercise.
Do albuterol sulfate inhalers expire, and are they safe and effective to use past the expiration date? Keep reading to learn about inhaler expiration…. Learn how you can successfully control your asthma, with tips for short-term relief, management techniques, medical treatments, and more.
Clenbuterol was previously given to livestock to increase lean muscle mass and livestock production. Now it's banned from being used for this purpose.
Three-time Tour de France winner Alberto Contador may be the most famous athlete to have used this excuse after testing positive for clenbuterol. Athletes who use clenbuterol do it to burn fat , build muscle, and improve sports performance. The drug is believed to increase the development of skeletal muscle by enhancing muscle protein synthesis. The effects of clenbuterol on athletes who take the drug over a long period of time aren't known.
What is clear is that besides affecting the muscles of the airways, clenbuterol is taken up by other tissues in the body. Animal studies have shown that clenbuterol use may lead to apoptosis—the death of normal cells—in the muscles, including the heart muscles.
Clenbuterol may lead to heart attacks and other heart damage, as well as irregular, heart rhythms. Athletes who chooses to rely on a banned performance-enhancing drug are risking being caught for cheating.
They also may be risking their health. Get nutrition tips and advice to make healthy eating easier. Updated July Effects of clenbuterol on horses. Comp Exerc Physiol. Food Anal Methods. Beta2-adrenergic agonist clenbuterol increases energy expenditure and fat oxidation, and induces mTOR phosphorylation in skeletal muscle of young healthy men. Drug Test Anal.
Effect of clenbuterol on apoptosis, adipogenesis, and lipolysis in adipocytes. J Physiol Biochem. Anabolic drugs and myocardial infarction - A clinical case report. In , the U. Food Safety and Inspection Service found it had been fed to livestock, so the animals gained more muscle and less fat. But, again, in many countries, clenbuterol is illegal for animal use. In this article, we take a look at how clenbuterol works, when it is used, and what the risks are for people who take it.
Clenbuterol stimulates both the heart and central nervous system. It has a similar effect on the body as epinephrine and amphetamines. It is also a betaagonist, which is the opposite of a beta-blocker. While a beta-blocker will reduce the production of epinephrine and noradrenaline, clenbuterol increases it.
However, bodybuilders, performance athletes, and those wanting to lose weight are now using the drug. As well as reducing body fat and weight, it also allows the user to retain both muscle mass and body strength at the same time.
Clenbuterol became known as a celebrity diet secret because of its apparent use by celebrities and famous athletes. One study reviewing data from two regional poison centers in the U. The World Anti-Doping Agency have banned the use of clenbuterol at all times, both in and outside of competition. Athletes and bodybuilders taking clenbuterol will often work on a program cycle that includes on and off periods. Such a program could mean 2 days taking clenbuterol and 2 days without taking any, or perhaps a week taking the drug followed by a week of none.
Dosage can vary, depending on factors that include gender and tolerance, and it can be taken orally or injected. Both methods have risks. Injections can cause scarring or air bubbles to form in the blood, while tablets can affect the liver. When used in Europe and Latin America to open up the airways in cases of asthma, the recommended dose is 0.
The reason clenbuterol is banned in so many countries and has become so controversial is that many side effects are associated with it. Clenbuterol can also have negative effects on the heart, such as heart palpitations, atrial fibrillation or an irregular and often fast heartbeat, and problems with blood pressure. Increased heart rate and dilation caused by the drug can lead to what is known as cardiac hypertrophy.
This condition is when the heart grows to an abnormal size, which in turn can lead to a heart attack and eventually death. Also, clenbuterol contains dopamine, which is commonly known as the reward hormone.
Dopamine is closely associated with addiction. As such, clenbuterol can be highly addictive. In many countries, clenbuterol is banned from being used in animals that will be consumed by humans.
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