Clenbuterol is a potent, long-lasting bronchodilator that is used in some European countries to treat asthma and related lung disorders. However, the drug is also a potent thermogenic agent and can selectively decrease fat and increase lean muscle mass. This property of Clenbuterol has made it a widely abused drug among many individuals. Because of this selective partitioning effect, the drug is widely abused by both amateur and professional athletes around the world.
Many experts in the field of sports medicine agree that Clenbuterol is not very dangerous- at least not like cocaine or amphetamine. For the healthy individual who does not take excessively high doses, the chances of developing a complication are rare. However, those individuals who have a prior heart problem or a fast heart rate should refrain from taking this drug. Often the drug can cause a significant lowering of blood pressure, anxiety and sweating. And in such cases a visit to the hospital is highly recommended.