Clenbuterol is a type of drug called a beta-agonist that is used as a way to expand the airways of asthma sufferers. Similar in action to Salbutamol and epinephrine, Clenbuterol is markedly more powerful and has a much longer half-life. Due to its stimulant and thermogenic effects, users of Clenbuterol will typically notice an increase in fat loss as well as experiencing tremors, although this side effect tends to dissipate after a few days. It also leads to an increase in blood pressure, and aerobic capacity. Due to its long half-life Clenbuterol is theorised to downregulate beta-2 receptors which is one reason it tends to be used only for a few weeks at a time.
Off-Label Use - Clenbuterol's powerful thermogenic properties has seen it used as a fat burner by many individuals. Indeed, some animal studies show that Clenbuterol not only acts to promote fat loss but also increase lean body mass. As a non-androgenic drug, this has made Clenbuterol a favourite among athletes who wish to improve body composition or performance without hormonal side effects seen with drugs such as anabolic steroids.
Clenbuterol is not prescribed so often these days, with inhalers being the preferred treatment option for most doctors supervising asthmatics. However, it has enjoyed popularity among athletes for several decades now with many prominent athletes being found to have taken Clenbuterol for its performance enhancment and body composition effects. When used by athletes, Clenbuterol is frequently combined with synergistic drugs such as T3 and Growth Hormone which further potentiate its fat burning properties.
Both female and male asthmatics can be prescribed Clenbuterol, and it has also seen significant usage by both male and female athletes.
Clenbuterol, being a long-acting drug is usually taken in the morning to avoid disturbing sleep patterns.