what is clenbuterol ?

Clenbuterol, marketed as Spiropent and Ventipulmin, is a sympathomimetic amine used by sufferers of breathing disorders as a decongestant and bronchodilator. People with chronic breathing disorders such as asthma use this as a bronchodilator to make breathing easier. It is most commonly available as the hydrochloride salt, clenbuterol hydrochloride.

Clenbuterol is a β2 agonist with some structural and pharmacological similarities to epinephrine and salbutamol, but its effects are more potent and longer-lasting as a stimulant and thermogenic drug. It causes an increase in aerobic capacity, central nervous system stimulation, and an increase in blood pressure and oxygen transportation. It increases the rate at which body fat is metabolized while increasing the body's BMR. It is commonly used for smooth muscle relaxant properties. This means that it is a bronchodilator and tocolytic.

Clenbuterol is usually used in dosages anywhere from 20-60 micrograms (mcg) a day when prescribed. A dose of about 20 mcg (women) or 40 mcg (men) should never be exceeded in a day.

Clenbuterol is also prescribed for treatment of horses; however, equine use is usually the liquid form of clenbuterol.

Clenbuterol is approved for use in some countries, via prescription only, as a bronchodilator for asthma patients. Recently though, the drug has been publicized for its off-label use as a weight loss drug, similar to usage of other sympathomimetic amines such as ephedrine. It is commonly used as a slimming aid despite lack of sufficient clinical testing either supporting or negating such use.

Excessive usage over the recommended dose of about 120 μg can cause muscle tremor, headache, dizziness and gastric irritation. Persons self-administering the drug for weight loss or to improve athletic performance have experienced nausea, vomiting, diaphoresis, palpitations, tachycardia and myocardial infarction. Use of the drug may be confirmed by detecting its presence in semen or urine

In September 2006, over 330 people in Shanghai were reported to have gotten food poisoning by eating pork contaminated by clenbuterol that had been fed to the animals to keep the meat lean.

In March 2011, China's Ministry of Agriculture (MOA) said that the government would launch a one-year crackdown on illegal additives in pig feed, after a subsidiary of Shuanghui Group, China's largest meat producer, was exposed for using clenbuterol-contaminated pork in its meat products. A total of 72 people in central Henan Province, where Shuanghui is based, were taken into police custody for allegedly producing, selling or using clenbuterol.

Where can I buy some ?