Performance-enhancing drugs

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (March 2007)

Part of a series on
Doping in sport
Substances and types Anabolic steroids Cannabinoids Diuretics Narcotics Painkillers Sedatives Stimulants Beta2-adrenergic agonist Clenbuterol Ephedrine EPO Human growth hormone Methylhexanamine SARMs Stanozolol Tetrahydrogestrinone
Terminology Abortion doping Blood-spinning Doping test Gene doping Performance-enhancing drugs Repoxygen Stem cell doping Whereabouts system Whizzinator
History At the Olympics At the Tour de France BALCO Scandal Barry Bonds perjury case Clemson University steroid scandal Dubin Inquiry In association football In East Germany Festina affair Floyd Landis doping case Game of Shadows Juiced Mitchell Report Operación Puerto Pittsburgh drug trials Steroid use in American football USC steroid scandal 2007 Tour de France
Doping-related lists Doping cases in: Sport Athletics Cycling Drugs banned from the Olympics MLB players suspended for doping MLB players in the Mitchell Report Sportspeople cleared of doping
Anti-doping bodies World Anti-Doping Agency Australian Sports Anti-Doping Authority UK Anti-Doping United States Anti-Doping Agency
v t e

Performance-enhancing drugs are substances used by people to improve their performance in the sports in which they engage. The term may also refer to drugs used by military personnel to enhance combat performance.^[1]

Types of performance-enhancing drugs

Although the phrase performance-enhancing drugs is used in reference to anabolic steroids or their precursors, world anti-doping organizations apply the term broadly. The phrase has been used to refer to several distinct classes of drugs:

• Lean mass builders are used to drive or amplify the growth of muscle and lean body mass, and sometimes to reduce body fat. This class of drugs includes anabolic steroids, xenoandrogens, beta-2 agonists, selective androgen receptor modulators (SARMs), and various human hormones, most notably human growth hormone, as well as some of their precursors. Performance Enhancing Drugs are also found in Animals as synthetic growth hormone.
• Stimulants are used to stimulate their body and mind to perform at optimal level by increasing focus, energy and aggression. Examples include caffeine, amphetamine, and methamphetamine.
• Painkillers mask athletes' pain so they can continue to compete and perform beyond their usual pain thresholds. Blood pressure is increased causing the cells in the muscles to be better supplied with vital oxygen. Painkillers used by athletes range from common over-the-counter medicines such as NSAIDs (such as ibuprofen) to powerful prescription narcotics.
• Sedatives are sometimes used by athletes in sports like archery which require steady hands and accurate aim, and also by athletes attempting to overcome excessive nervousness or discomfort. Alcohol, valium, propranolol, and marijuana are examples.
• Diuretics expel water from athletes' bodies. They are often used by athletes such as wrestlers, who need to meet weight restrictions. Many stimulants also have secondary diuretic effect.
• Masking drugs are used to prevent the detection of other classes of drugs. These evolve as quickly as do testing methods – which is very quick indeed^[2] – although a time-tested classic example is the use of epitestosterone, a drug with no performance-enhancing effects, to restore the testosterone/epitestosterone ratio (a common criterion in steroid testing) to normal levels after anabolic steroid supplementation.

Definition

The classification of substances as performance-enhancing drugs is not entirely clear-cut and objective. As in other types of categorization, certain prototype performance enhancers that are universally classified as such (like anabolic steroids), whereas other substances (like vitamins and protein supplements) are virtually never classified as performance enhancers despite their significant effects on athletes' performance. As is usual with categorization, there are borderline cases; caffeine, for example, is considered a performance enhancer by some athletic authorities but not others.^[3]

See also

• Bodybuilding
• Anabolic steroid
• Steroid use in American football
• Ergogenic aid
• Ergogenic use of anabolic steroids

References

External links

• Mitchell Report – regarding Major League Baseball.
• Risks to health – from Mayo Clinic.