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What is clenbuterol? What is the harm of lean essence to people? In animal feed in the use of "Clenbuterol" residues in animal products, chemical properties of this material is stable, the general heat treatment method can not be destroyed, people eat contains a lot of "Clenbuterol" residues in animal products, in 15 - 20 minutes will appear dizziness, face flushing, rapid heartbeat, chest tightness, heart palpitations, palpitation and other symptoms, great harm to human health. "Clenbuterol" in animal liver, lung, kidney, spleen and other internal organs residue higher.

Intake of residues in food "Clenbuterol" will produce tachycardia, palpitation and chest tightness, can't help trembling, feet stand, limbs, muscle tremors, dizziness and other central nervous system poisoning after the runaway phenomenon, and even death; its chronic characteristics will lead to precocious puberty.

Clenbuterol is a beta agonist of 2-, at the beginning of 1980s, the company began to be added to the feed, increase lean meat rate, but if used as a feed additive, the dosage is 10 times more than one dose, in order to improve the effect of lean meat rate. It is big in quantity, long in use and slow in metabolism, so there is a great deal of residue in the pig before slaughter. This residue enters the body through food, causing the body to gradually poison and accumulate poisoning. If an intake is too large, a toxic response to an abnormal physiological reaction is thus prohibited.

The domestic pig farmers regardless of the provisions of the Ministry of agriculture, in order to make pork fat is not long, the incorporation of clenbuterol in feed. After eating, pigs promote protein synthesis in the process of metabolism, accelerate the transformation and decomposition of fat, and improve the lean meat rate of pork. Therefore, it is called lean meat essence. Acute poisoning with palpitations, face and neck, limbs muscle tremors, a tremor cannot even stand, dizziness, fatigue, the arrhythmia patients are more prone to reaction, tachycardia, ventricular extrasystole, ECG showed S-T segment depression and T wave inversion.

2., the original sympathetic hyperfunction of patients, such as hypertension, coronary heart disease, hyperthyroidism, these symptoms are more prone to occur.

3., in combination with glucocorticoids, can cause hypokalemia, which can lead to arrhythmias.

4. repeated use can produce tolerance, reduce the effect of bronchiectasis and shorten the duration. Although the toxic effects of clenbuterol residues were mild, the US FDA study showed that reactions to clenbuterol or hypersensitivity to prodrugs were more severe in response to clenbuterol than in healthy individuals.

FDA worries that illegal use of Karen can cause the disease or death of the drug producing worker. FDA pointed out that occupational inhalation of clenbuterol may have a more adverse cardiovascular effect than food intake, but further confirmation is needed.