Anabolic steroids, officially known as
anabolic-androgen steroids (
AAS), are drugs which mimic the effects of the
male sex hormones testosterone and
dihydrotestosterone. They increase
protein synthesis within cells, which results in the buildup of
cellular tissue (
anabolism), especially in
muscles. Anabolic steroids also have
androgenic and
virilizing properties, including the development and maintenance of
masculine characteristics such as the growth of the
vocal cords and body hair. The word
anabolic comes from the Greek ἀναβολή
anabole, "that which is thrown up, mound", and the word
androgenic from the Greek ἀνδρός
andros, "of a man" + -γενής
-genes, "born".
Anabolic steroids were first isolated, identified and
synthesized in the 1930s, and are now used therapeutically in medicine to stimulate bone growth and appetite, induce male
puberty, and treat chronic
wasting conditions, such as
cancer and
AIDS. The
American College of Sports Medicine acknowledges that AAS, in the presence of adequate diet, can contribute to increases in body weight, often as lean mass increases, and that the gains in muscular strength achieved through high-intensity exercise and proper diet can be additionally increased by the use of AAS in some individuals.
[2]
Some health risks can be produced by long-term use or excessive doses of anabolic steroids. These effects include harmful changes in
cholesterol levels (increased
low-density lipoprotein and decreased
high-density lipoprotein),
acne,
high blood pressure,
liver damage (mainly with oral steroids), and dangerous changes in the structure of the
left ventricle of the heart.
Ergogenic uses for anabolic steroids in sports and
bodybuilding are controversial because of their adverse effects and the potential to gain an advantage conventionally considered "cheating." Their use is referred to as
doping and banned by all major sporting bodies. For many years AAS have been by far the most detected doping substances in
IOC-accredited laboratories.
[3][4] In countries where AAS are
controlled substances, there is often a
black market in which smuggled or even
counterfeit drugs are sold to users.
History
Isolation of gonadal AAS
Chemical structure of the natural anabolic hormone
testosterone, 17β-hydroxy-4-androsten-3-one
The use of
gonadal steroids pre-dates their identification and isolation. Medical use of
testicle extract began in the late 19th century while its effects on strength were still being studied.
[5] The isolation of gonadal steroids can be traced back to 1931 when
Adolf Butenandt, a chemist in
Marburg, purified 15 milligrams of the male hormone
androstenone from tens of thousands of litres of urine. This steroid was subsequently
synthesized in 1934 by
Leopold Ruzicka, a chemist in
Zurich.
[6]
In the 1930s it was already known that the
testes contained a more powerful
androgen than
androstenone, and three groups of scientists, funded by competing
pharmaceutical companies in the Netherlands,
Nazi Germany and Switzerland, raced to isolate it.
[6][7] This hormone was first identified by Karoly Gyula David, E. Dingemanse, J. Freud and Ernst Laqueur in a May 1935 paper "On Crystalline Male Hormone from Testicles (Testosterone)."
[8] They named the hormone
testosterone, from the
stems of
testicle and
sterol, and the suffix of
ketone. The
chemical synthesis of testosterone was achieved in August that year, when Butenandt and G. Hanisch published a paper describing "A Method for Preparing Testosterone from Cholesterol."
[9] Only a week later, the third group, Ruzicka and A. Wettstein, announced a patent application in a paper "On the Artificial Preparation of the Testicular Hormone Testosterone (Androsten-3-one-17-ol)."
[10] Ruzicka and Butenandt were offered the 1939
Nobel Prize in Chemistry for their work, but the
Nazi government forced Butenandt to decline the honor, although he accepted the prize after the end of World War II.
[6][7]
Clinical trials on humans, involving either oral doses of
methyltestosterone or injections of
testosterone propionate, began as early as 1937.
[6] Testosterone propionate is mentioned in a letter to the editor of
Strength and Health magazine in 1938; this is the earliest known reference to an anabolic steroid in a U.S.
weightlifting or
bodybuilding magazine.
[6] There are often reported rumors that German soldiers were administered anabolic steroids during the Second World War, the aim being to increase their aggression and stamina, but these are, as yet, unproven.
[11] Adolf Hitler himself, according to his physician, was injected with testosterone derivatives to treat various ailments.
[12] AAS were used in experiments conducted by the Nazis on concentration camp inmates,
[12] and later by the allies attempting to treat the malnourished victims that survived Nazi camps.
[11]
Development of synthetic AAS
The development of muscle-building properties of testosterone was pursued in the 1940s, in the Soviet Union and in
Eastern Bloc countries such as East Germany, where steroid programs were used to enhance the performance of
Olympic and other
amateur weight lifters. In response to the success of Russian weightlifters, the U.S. Olympic Team physician Dr.
John Ziegler worked with synthetic chemists to develop an anabolic steroid with reduced
androgenic effects.
[13] Ziegler's work resulted in the production of
methandrostenolone, which Ciba Pharmaceuticals marketed as Dianabol. The new steroid was approved for use in the U.S. by the
Food and Drug Administration (FDA) in 1958. It was most commonly administered to burn victims and the elderly. The drug's
off-label users were mostly bodybuilders and weight lifters. Although Ziegler prescribed only small doses to athletes, he soon discovered that those who abused Dianabol suffered from enlarged prostates and atrophied testes.
[14] AAS were placed on the list of banned substances of the IOC in 1976, and a decade later the committee introduced 'out-of-competition' doping tests because many athletes used AAS in their training period rather than during competition.
[3]
Three major ideas governed modifications of testosterone into a multitude of AAS:
alkylation at 17-alpha position with
methyl or
ethyl group created orally active compounds because it slows the degradation of the drug by the liver,
esterification of testosterone and
nortestosterone at the 17-beta position allows the substance to be administered parenterally and increases the duration of effectiveness because agents soluble in oily liquids may be present in the body for several months, and finally alterations of the ring structure were applied for both oral and parenteral agents to seeking to obtain different anabolic to androgenic effect ratios.
[15]
Pharmacology
Routes of administration
A vial of injectable testosterone cypionate
There are three common forms in which anabolic steroids are administered: oral pills, injectable steroids, and skin patches. Oral administration is the most convenient. Testosterone administered by mouth is rapidly absorbed, but it is largely converted to inactive metabolites, and only about 1/6 is available in active form. In order to be sufficiently active when given by mouth, testosterone derivatives are alkylated at the 17 position, e.g.
methyltestosterone and
fluoxymesterone. This modification reduces the liver's ability to break down these compounds before they reach the systemic circulation.
Testosterone can be administered
parenterally, but it has more irregular prolonged absorption time and greater activity in
propionate,
enanthate,
undecanoate or
cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection.
[16] Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream.
Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Injection is the most common method used by individuals administering anabolic steroids for non-medical purposes.
[17]
The traditional routes of administration do not have differential effects on the efficacy of the drug. Studies indicate that the anabolic properties of anabolic steroids are relatively similar despite the differences in pharmacokinetic principles such as
first-pass metabolism. However, the orally available forms of AAS may cause
liver damage in high doses.
[4][18]
Mechanism of action
The
pharmacodynamics of anabolic steroids are unlike
peptide hormones. Water-soluble peptide hormones cannot penetrate the fatty
cell membrane and only indirectly affect the
nucleus of target
cells through their interaction with the cell’s surface
receptors. Conversely, as fat-soluble hormones, anabolic steroids are membrane permeable and influence the nucleus of cells by direct action. The pharmacodynamic action of anabolic steroids begin when the exogenous hormone penetrates the membrane of the target cell and binds to an
androgen receptor located in the
cytoplasm of that cell. From there, the compound hormone-receptor diffuses into the nucleus, where it either alters the
expression of
genes[20] or activates processes that
send signals to other parts of the cell.
[21] Different types of anabolic steroids bind to the androgen receptor with different
affinities, depending on their chemical structure.
[3] Some anabolic steroids such as
methandrostenolone bind weakly to this receptor in vitro, but still exhibit androgenic effects in vivo. The reason for this discrepancy is not known.
[22]
The effect of anabolic steroids on muscle mass is caused in at least two ways:
[23] first, they increase the
production of proteins; second, they reduce recovery time by blocking the effects of stress hormone
cortisol on muscle tissue, so that
catabolism of muscle is greatly reduced. It has been
hypothesized that this reduction in muscle breakdown may occur through anabolic steroids inhibiting the action of other steroid hormones called
glucocorticoids that promote the breakdown of muscles.
[24] Anabolic steroids also affect the number of cells that develop into fat-storage cells, by favouring
cellular differentiation into muscle cells instead.
[25] Anabolic steroids can also decrease fat by increasing
basal metabolic rate (BMR), since an increase in muscle mass increases BMR.
Anabolic and androgenic effects
As the name suggests, anabolic-androgenic steroids have two different, but overlapping, types of effects:
anabolic, meaning that they promote
anabolism (cell growth), and
androgenic (or
virilizing), meaning that they affect the development and maintenance of masculine characteristics.
Some examples of the anabolic effects of these hormones are increased
protein synthesis from
amino acids, increased appetite, increased bone remodeling and growth, and stimulation of
bone marrow, which increases the production of
red blood cells. Through a number of
mechanisms anabolic steroids stimulate the formation of muscle cells and hence cause an increase in the size of
skeletal muscles, leading to increased strength.
[26][27][28]
The
androgenic effects of AAS are numerous. Processes affected include pubertal growth,
sebaceous gland oil production, and sexuality (especially in fetal development). Some examples of virilizing effects are
growth of the clitoris in females and the
penis in male children (the adult penis does not grow even when exposed to high doses of androgens), increased growth of androgen-sensitive hair (
pubic, beard, chest, and limb hair), increased
vocal cord size, deepening the voice, increased
libido, suppression of
natural sex hormones, and impaired
production of sperm.
[29]
The androgenic:anabolic ratio of an AAS is an important factor when determining the clinical application of these compounds. Compounds with a high ratio of androgenic to a anabolic effects are the drug of choice in androgen-replacement therapy (e.g. treating
hypogonadism in males), whereas compounds with a reduced androgenic:anabolic ratio are preferred for anemia, osteoporosis, and to reverse protein loss following trauma, surgery or prolonged immobilization. Determination of androgenic:anabolic ratio is typically performed in animal studies, which has led to the marketing of some compounds claimed to have anabolic activity with weak androgenic effects. This disassociation is less marked in humans, where all anabolic steroids have significant androgenic effects.
[16]
A commonly used protocol for determining the androgenic:anabolic ratio, dating back to the 1950s, uses the relative weights of ventral
prostate (VP) and
levator ani muscle (LA) of male
rats. The VP weight is an indicator of the androgenic effect, while the LA weight is an indicator of the anabolic effect. Two or more batches of rats are
castrated and given no treatment and respectively some AAS of interest. The
LA/VP ratio for an AAS is calculated as the ratio of LA/VP weight gains produced by the treatment with that compound using castrated but untreated rats as baseline: (LA
c,t–LA
c)/(VP
c,t–VP
c). The LA/VP weight gain ratio from rat experiments is not unitary for testosterone (typically 0.3–0.4), but it's normalized for presentation purposes, and used as basis of comparison for other AAS, which have their androgenic:anabolic ratios scaled accordingly (as shown in the table above).
[30][22] In the early 2000s this procedure was standardized and generalized throughout
OECD in what is now known as the
Hershberger assay.
Body composition and strength improvements
A review spanning more than three decades of experimental studies in men found that body weight may increase by 2–5 kg as a result of short term (<10 weeks) AAS use, which may be attributed mainly to an increase of lean mass. Animal studies also found that fat mass was reduced, but most studies in humans failed to elucidate significant fat mass decrements. The effects on lean body mass have been shown to be dose dependent. Both
muscle hypertrophy and the formation of new
muscle fibers have been observed. The hydration of lean mass remains unaffected by AAS use, although small increments of blood volume cannot be ruled out.
[31]
The upper region of the body (thorax, neck, shoulders and upper arm) seems to be more susceptible for AAS than other body regions because of predominance of androgen receptors in the upper body. The largest difference in muscle fibre size between AAS users and non-users was observed in type I muscle fibres of the
vastus lateralis and the
trapezius muscle as a result of long-term AAS self-administration. After drug withdrawal the effects fade away slowly, but may persist for more than 6–12 weeks after cessation of AAS use.
[31]
The same review observed strength improvements in the range of 5-20% of baseline strength, largely depending on the drugs and dose used as well as the administration period. Overall, the exercise where the most significant improvements were observed was the
bench press.
[32] For almost two decades it was assumed that AAS only exerted significant effects in experienced strength athletes, particularly based on the studies of Hervey and coworkers.
[33][34] In 1996 a randomized controlled trial published in the
New England Journal of Medicine demonstrated however that even in novice athletes a 10-week strength training program accompanied by
testosterone enanthate at 600 mg/week may improve strength more than training alone does.
[32][35] The same study found that dose was sufficient to significantly improve lean muscle mass relative to placebo even in subjects that did not exercise at all.
[35] A 2001 study by the same first author, showed that the anabolic effects of testosterone enanthate were highly dose dependent.
[31][36]
Adverse effects
Anabolic steroids can cause many
adverse effects. Most of these side effects are dose-dependent, the most common being elevated
blood pressure, especially in those with pre-existing
hypertension,
[37] and harmful changes in
cholesterol levels: some steroids cause an increase in
LDL cholesterol and a decrease in
HDL cholesterol.
[38] Anabolic steroids have been shown to alter fasting blood sugar and glucose tolerance tests.
[39] Anabolic steroids such as testosterone also increase the risk of
cardiovascular disease[40] or
coronary artery disease.
[41][42] Acne is fairly common among anabolic steroid users, mostly due to stimulation of the
sebaceous glands by increased testosterone levels.
[43][44] Conversion of testosterone to
dihydrotestosterone (DHT) can accelerate the rate of premature
baldness for males who are genetically predisposed, but testosterone itself can produce baldness in females.
[45]
High doses of oral anabolic steroid compounds can cause
liver damage, as the steroids are metabolized (17α-
alkylated) in the digestive system to increase their
bioavailability and stability.
[46]
There are also sex-specific side effects of anabolic steroids. Development of breast tissue in males, a condition called
gynecomastia (which is usually caused by high levels of circulating
estradiol), may arise because of increased conversion of testosterone to estradiol by the enzyme
aromatase.
[47] Reduced
sexual function and temporary
infertility can also occur in males.
[48][49][50] Another male-specific side effect which can occur is
testicular atrophy, caused by the suppression of natural testosterone levels, which inhibits
production of sperm (most of the mass of the testes is developing sperm). This side effect is temporary: the size of the testicles usually returns to normal within a few weeks of discontinuing anabolic steroid use as normal production of sperm resumes.
[51] Female-specific side effects include
increases in body hair, deepening of the voice,
enlarged clitoris, and temporary decreases in
menstrual cycles. When taken during pregnancy, anabolic steroids can affect
fetal development by causing the development of male features in the female fetus and female features in the male fetus.
[52]
A number of severe side effects can occur if adolescents use anabolic steroids.
For example, the steroids may prematurely stop the lengthening of bones (premature
epiphyseal fusion through increased levels of estrogen
metabolites), resulting in
stunted growth. Other effects include, but are not limited to, accelerated
bone maturation, increased frequency and duration of erections, and premature sexual development. Anabolic steroid use in adolescence is also
correlated with poorer attitudes related to health.
[53]
Other side effects can include alterations in the structure of the
heart, such as
enlargement and thickening of the left ventricle, which impairs its contraction and
relaxation.
[54] Possible effects of these alterations in the heart are hypertension,
cardiac arrhythmias,
congestive heart failure,
heart attacks, and
sudden cardiac death.
[55] These changes are also seen in non-drug using
athletes, but steroid use may accelerate this process.
[56][57] However, both the connection between changes in the structure of the left ventricle and decreased cardiac function, as well as the connection to steroid use have been disputed.
[58][59]
Psychiatric effects
A 2005 review in
CNS Drugs determined that "significant psychiatric symptoms including aggression and violence,
mania, and less frequently
psychosis and suicide have been associated with steroid
abuse. Long-term steroid abusers may develop symptoms of
dependence and
withdrawal on discontinuation of AAS".
[60] High concentrations of AAS, comparable to those likely sustained by many recreational AAS users, produce
apoptotic effects on
neurons, raising the specter of possibly irreversible neuropsychiatric toxicity. Recreational AAS use appears to be associated with a range of potentially prolonged psychiatric effects, including dependence syndromes,
mood disorders, and progression to other forms of substance abuse, but the prevalence and severity of these various effects remains poorly understood.
[61] There is no evidence that steroid dependence develops from
therapeutic use of anabolic steroids to treat medical disorders, but instances of AAS dependence have been reported among weightlifters and bodybuilders who chronically administered supraphysiologic doses.
[62] Mood disturbances (e.g. depression, [hypo-]mania, psychotic features) are likely to be dose- and drug-dependent, but AAS dependence or withdrawal effects seem to occur only in a small number of AAS users.
[63]
Large scale long term studies of psychiatric effects on AAS users are not currently available.
[61] In 2003, the first naturalistic long term study on ten users, seven of which completed the study, found a high incidence of mood disorders and substance abuse, but few clinically relevant changes in physiological parameters or laboratory measures were noted throughout the study, and these changes were not clearly related to periods of reported AAS use.
[64] A 13-month study, published in 2006 and which involved 320 body builders and athletes suggests that the wide range of psychiatric side effects induced by the use of AAS is correlated to the severity of abuse.
[65]
Aggression and hypomania
From the mid-1980s onwards the popular press has been reporting
"roid rage" as a side effect of AAS (the term being a play on the more established phenomenon of
road rage).
[66]
A 2005 review determined that some, but not all, randomized controlled studies have found that anabolic steroid use correlates with hypomania and increased aggressiveness, but pointed out that attempts to determine whether AAS use triggers violent behaviour have failed, primarily because of high rates of non-participation.
[67] A 2008 study on a nationally representative sample of young adult males in the United States found an association between lifetime and past-year self-reported anabolic-androgenic steroid use and involvement in violent acts. Compared with individuals who did not use steroids, young adult males who used anabolic-androgenic steroids reported greater involvement in violent behaviors even after controlling for the effects of key demographic variables, previous violent behavior, and polydrug use.
[68] A 1996 review examining the
blind studies available at that time also found that these had demonstrated a link between aggression and steroid use, but pointed out that with estimates of over one million past or current steroid users in the United States at that time, an extremely small percentage of those using steroids appear to have experienced mental disturbance severe enough to result in clinical treatments or medical case reports.
[69]
A 1996
randomized controlled trial, which involved 43 men, did not find an increase in the occurrence of angry behavior during 10 weeks of administration of
testosterone enanthate at 600 mg/week, but this study screened out subjects that had previously abused steroids or had any psychiatric antecedents.
[35][70] A trial conducted in 2000 using
testosterone cypionate at 600 mg/week found that treatment significantly increased
manic scores on the
YMRS, and aggressive responses on several scales. The drug response was highly variable, however: 84% of subjects exhibited minimal psychiatric effects, 12% became mildly hypomanic, and 4% (2 subjects) became markedly hypomanic. The mechanism of these variable reactions could not be explained by demographic, psychological, laboratory, or physiological measures.
[71]
A 2006 study of two pairs of identical twins, in which one twin used anabolic steroids and the other did not, found that in both cases the steroid-using twin exhibited high levels of aggressiveness, hostility, anxiety and paranoid ideation not found in the "control" twin.
[72] A small scale study of 10 AAS users found that
cluster B personality disorders were confounding factors for aggression.
[73]
Depression and suicide
The relationship between AAS use and depression is inconclusive. There have been anecdotal reports of depression and suicide in teenage steroid users,
[74] but little systematic evidence. A 1992 review found that anabolic-androgenic steroids may both relieve and cause depression, and that cessation or diminished use of anabolic-androgenic steroids may also result in depression, but called for additional studies due to disparate data.
[75]
Addiction potential
In an animal study male rats developed a
conditioned place preference to testosterone injections into the
nucleus accumbens, an effect blocked by
dopamine antagonists, which suggests that androgen reinforcement is mediated by the brain. Moreover, testosterone appears to act through the mesolimbic dopamine system, a common substrate for drugs of abuse. Nonetheless, androgen reinforcement is not comparable to that of cocaine, nicotine or heroin. Instead, testosterone resembles other mild reinforcers, such as caffeine, or benzodiazepines. The potential for androgen addiction remains to be determined.
[76]
Medical and ergogenic uses
Medical uses
Various anabolic steroids and related compounds
Since the discovery and synthesis of testosterone in the 1930s, anabolic steroids have been used by physicians for many purposes, with varying degrees of success.
- Bone marrow stimulation: For decades, anabolic steroids were the mainstay of therapy for hypoplastic anemias due to leukemia or kidney failure, especially aplastic anemia.[77] Anabolic steroids have largely been replaced in this setting by synthetic protein hormones (such as epoetin alfa) that selectively stimulate growth of blood cell precursors.
- Growth stimulation: Anabolic steroids can be used by pediatric endocrinologists to treat children with growth failure.[78] However, the availability of synthetic growth hormone, which has fewer side effects, makes this a secondary treatment.
- Stimulation of appetite and preservation and increase of muscle mass: Anabolic steroids have been given to people with chronic wasting conditions such as cancer and AIDS.[79][80]
- Induction of male puberty: Androgens are given to many boys distressed about extreme delay of puberty. Testosterone is now nearly the only androgen used for this purpose and has been shown to increase height, weight, and fat-free mass in boys with delayed puberty.[81]
- Testosterone enanthate has frequently been used as a male contraceptive and it is thought that in the near future it could be used as a safe, reliable, and reversible male contraceptive.[50][82]
- Anabolic steroids have been found in some studies to increase lean body mass and prevent bone loss in elderly men.[83][84][85] However, a 2006 placebo-controlled trial of low-dose testosterone supplementation in elderly men with low levels of testosterone found no benefit on body composition, physical performance, insulin sensitivity, or quality of life.[86]
- Used in hormone replacement therapy for men with low levels of testosterone and is also effective in improving libido for elderly males.[87][88][89][90]
- Used to treat Gender Identity Disorder by producing secondary male characteristics, such as a deeper voice, increased bone and muscle mass, facial hair, increased levels of red blood cells and clitoral enlargement in female-to-male patients.[91]
Ergogenic use and abuse
Numerous vials of injectable anabolic steroids
Between 1 million and 3 million people (1% of the population) are thought to have misused AAS in the United States.
[92] Studies in the United States have shown anabolic steroid users tend to be mostly middle-class
heterosexual men with a
median age of about 25 who are noncompetitive bodybuilders and non-athletes and use the drugs for cosmetic purposes.
[93] Another study found that non-medical use of AAS among college students was at or less than 1%.
[94] According to a recent survey, 78.4% of steroid users were noncompetitive bodybuilders and non-athletes while about 13% reported unsafe injection practices such as reusing needles, sharing needles, and sharing multidose vials,
[95] though a 2007 study found that sharing of needles was extremely uncommon among individuals using anabolic steroids for non-medical purposes, less than 1%.
[17] Another 2007 study found that 74% of non-medical anabolic steroid users had secondary college degrees and more had completed college and less had failed to complete high school than is expected from the general populace.
[17] The same study found that individuals using anabolic steroids for non-medical purposes had a higher employment rate and a higher household income than the general population.
[17] Anabolic steroid users tend to research the drugs they are taking more than other controlled-substance users; however, the major sources consulted by steroid users include friends, non-medical handbooks, internet-based forums, blogs and fitness magazines, which can provide questionable or inaccurate information.
[96]
Anabolic steroid users tend to be disillusioned by the portrayal of anabolic steroids as deadly in the media and in politics.
[97] According to one study, AAS users also distrust their physicians and in the sample 56% had not disclosed their AAS use to their physicians.
[98] Another 2007 study had similar findings, showing that while 66% of individuals using anabolic steroids for non-medical purposes were willing to seek medical supervision for their steroid use, 58% lacked trust in their physicians, 92% felt that the medical community's knowledge of non-medical anabolic steroid use was lacking and 99% felt that the public has an exaggerated view of the side effects of anabolic steroid use.
[17] A recent study has also shown that long term AAS users were more likely to have symptoms of
muscle dysmorphia and also showed stronger endorsement of more conventional male roles.
[99]
Anabolic steroids have been used by men and women in many different kinds of professional sports to attain a competitive edge or to assist in recovery from injury. These sports include
bodybuilding,
weightlifting,
shot put and other
track and field,
cycling,
baseball,
wrestling,
mixed martial arts,
boxing,
football, and
cricket. Such use is prohibited by the rules of the governing bodies of most sports. Anabolic steroid use occurs among adolescents, especially by those participating in competitive sports. It has been suggested that the prevalence of use among high-school students in the U.S. may be as high as 2.7%.
[100] Male students used anabolic steroids more frequently than female students and, on average, those who participated in sports used steroids more often than those who did not.
Legal and sport restrictions
The use of anabolic steroids is banned by all major sporting bodies, including the
International Olympic Committee,
Major League Baseball, the
National Football League, the
National Basketball Association, the
National Hockey League,
World Wrestling Entertainment,
ICC,
ITF,
FIFA,
FINA,
UEFA, the
European Athletic Association, and the
Brazilian Football Confederation.
Legal status
The legal status of anabolic steroids varies from country to country: some have stricter controls on their use or prescription than others though in many countries they are not illegal. In the U.S., anabolic steroids are currently listed as Schedule III
controlled substances under the
Controlled Substances Act, which makes the first offense simple possession of such substances without a prescription a federal crime punishable by up to one year in prison, and the unlawful distribution or possession with intent to distribute anabolic steroids punishable as a first offense by up to ten years in prison.
[101] In Canada, anabolic steroids and their derivatives are part of the Controlled drugs and substances act and are
Schedule IV substances, meaning that it is illegal to obtain or sell them without a prescription; however, possession is not punishable, a consequence reserved for schedule I, II or III substances. Those guilty of buying or selling anabolic steroids in Canada can be imprisoned for up to 18 months. Import and export also carry similar penalties.
[102] Anabolic steroids are also illegal without prescription in Australia,
[103] Argentina, Brazil and Portugal,
[104] and are listed as Class C
Controlled Drugs in the United Kingdom. On the other hand, anabolic steroids are readily available without a prescription in some countries such as Mexico and Thailand.
United States
The history of the U.S. legislation on anabolic steroids goes back to the late 1980s, when the
U.S. Congress considered placing anabolic steroids under the Controlled Substances Act following the controversy over
Ben Johnson's victory at the
1988 Summer Olympics in
Seoul. During deliberations, the
American Medical Association (AMA),
Drug Enforcement Administration (DEA),
Food and Drug Administration (FDA) as well as the
National Institute on Drug Abuse (NIDA) all opposed listing anabolic steroids as controlled substances, citing the fact that use of these hormones does not lead to the physical or psychological dependence required for such scheduling under the Controlled Substance Act. Nevertheless, anabolic steroids were added to Schedule III of the Controlled Substances Act in the Anabolic Steroid Control Act of 1990.
[105] The same act also introduced more stringent controls with higher criminal penalties for offenses involving the illegal distribution of anabolic steroids and human growth hormone. By the early 1990s, after anabolic steroids were scheduled in the U.S., several pharmaceutical companies stopped manufacturing or marketing the products in the U.S., including Ciba, Searle, Syntex and others. In the Controlled Substances Act, anabolic steroids are defined to be any drug or hormonal substance chemically and pharmacologically related to testosterone (other than
estrogens,
progestins, and
corticosteroids) that promote muscle growth. The act was amended by the Anabolic Steroid Control Act of 2004, which added
prohormones to the list of
controlled substances, with effect from January 20, 2005.
[106]
Movement for decriminalization
After the Anabolic Steroid Control Act of 1990 listed anabolic steroids as
Schedule III controlled substances in the U.S., a small movement has arisen that is highly critical of current laws concerning anabolic steroids. On June 21, 2005,
Real Sports aired a segment discussing the legality and prohibition of anabolic steroids in America.
[107] The show featured
Gary I. Wadler, M.D., chairman of the U.S. Anti-Doping Agency and a prominent anti-steroid activist. When pressed for scientific evidence by correspondent
Armen Keteyian that anabolic steroids are as "highly fatal" as is often claimed, Wadler admitted there was no evidence. Bryant Gumbel concluded the "hoopla" concerning the dangers of anabolic steroids in the media was "all smoke and no fire".
[107] The show also featured John Romano, a pro-steroid activist who wrote "The Romano Factor", a pro-steroid column for bodybuilding magazine
Muscular Development.
United Kingdom
In the United Kingdom, anabolic steroids are classified as class C drugs for their illegal abuse potential, which puts them in the same class as
benzodiazepines. Anabolic steroids are in Schedule 4, which is divided in 2 parts; Part 1 contains most of the benzodiazepines and Part 2 contains the anabolic and androgenic steroids. There are no special controls on Schedule 4 drugs.
Status in sports
Anabolic steroids are banned by all major sports bodies including
Fédération Internationale de Football Association[108] the
Olympics,
[109] the
National Basketball Association,
[110] the
National Hockey League,
[111] as well as the
National Football League.
[112] The
World Anti-Doping Agency (WADA) maintains the list of performance-enhancing substances used by many major sports bodies and includes all anabolic agents, which includes all anabolic steroids and precursors as well as all hormones and related substances.
[113][114] Spain has passed an anti-doping law creating a national anti-doping agency.
[115] Italy passed a law in 2000 where penalties range up to three years in prison if an athlete has tested positive for banned substances.
[116] In 2006, Russian President
Vladimir Putin signed into law ratification of the International Convention Against Doping in Sport which would encourage cooperation with WADA. Many other countries have similar legislation prohibiting anabolic steroids in sports including Denmark,
[117] France,
[118] the Netherlands
[119] and Sweden.
[120]
Detection of use
The most commonly employed human physiological specimen for detecting anabolic steroid usage is urine, although both blood and hair have been investigated for this purpose. The anabolic steroids, whether of endogenous or exogenous origin, are subject to extensive hepatic biotransformation by a variety of enzymatic pathways. The primary urinary metabolites may be detectable for up to 30 days after the last use, depending on the specific agent, dose and route of administration. A number of the drugs have common metabolic pathways, and their excretion profiles may overlap those of the endogenous steroids, making interpretation of testing results a very significant challenge to the analytical chemist. Methods for detection of the substances or their excretion products in urine specimens usually involve gas chromatography-mass spectrometry or liquid chromatography-mass spectrometry.
[121][122][123][124]
Illegal trade
Several large buckets containing tens of thousands of Anabolic steroid vials confiscated by the
DEA during "Operation Raw Deal" in 2007.
Anabolic steroids are frequently produced in pharmaceutical laboratories, but in nations where stricter laws are present, they are also produced in small home made underground laboratories, usually from raw substances imported from abroad.
[125] In these countries the majority of steroids are obtained illegally through
black market trade.
[126][127] These steroids are usually manufactured in other countries, and therefore must be
smuggled across international borders. Like most significant smuggling operations,
organized crime is involved.
[128]
In the late 2000s the worldwide trade in illicit AAS increased significantly, and authorities announced record captures on three continents. In 2006 Finnish authorities announced a record seizure of 11.8 million AAS tablets. A year later the DEA seized 11.4 million units of AAS in the largest U.S seizure ever. In the first three months of 2008, Australian customs reported a record 300 seizures of AAS shipments.
[129]
In the U.S., Canada and Europe, illicit steroids are sometimes purchased just like any other illegal drug, through dealers who are able to obtain the drugs from a number of sources. Illegal anabolic steroids are sometimes sold at gyms, competitions, and through the mail, but may also be obtained through pharmacists, veterinarians, and physicians.
[130] In addition, a significant number of counterfeit products are sold as anabolic steroids, particularly via mail order from websites posing as overseas pharmacies. In the U.S., black market importation continues from Mexico, Thailand, and other countries where steroids are more easily available as they are legal.
[131]
(source : http://en.wikipedia.org/wiki/Anabolic_steroid )
