WADA Prohibited List is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Updated 2026-07-06. Numbers and descriptions here follow the published literature rather than marketing material.
Cardarine is a common name for GW501516, an investigational compound developed in the 1990s for metabolic conditions. It acts as an agonist at peroxisome proliferator-activated receptor delta, a nuclear receptor involved in lipid and energy metabolism. The compound is frequently mislabeled as a selective androgen receptor modulator, or SARM, but its molecular target is different. GW501516 reached early clinical testing before development was discontinued. It has no approved therapeutic use in any country. The name cardarine is not a formal international nonproprietary name.
Regulatory treatment varies, but cardarine is not approved as a medicine. Sports authorities list GW501516 as a prohibited substance, and it is banned at all times under the World Anti-Doping Agency code. Many countries restrict sales for human consumption, while online vendors market it as a research chemical. Such products may lack purity data, and their actual contents can differ from the label. Purchasing or possessing cardarine may carry legal consequences depending on jurisdiction. The compound is not a dietary supplement ingredient in regulated markets.
Clinical development stopped after rodent studies showed tumors at multiple sites. Whether those findings predict human cancer risk remains an open question, but they led sponsors to discontinue programs. Human safety data are limited to small, short-term studies that were not designed to assess cancer risk. Reported effects in those studies included changes in blood lipids, but the evidence is insufficient for medical use. Long-term consequences of nonmedical use are not well characterized. Questions about dose, duration, and individual susceptibility remain unresolved.
Analytical laboratories typically identify cardarine and its metabolites using liquid chromatography-tandem mass spectrometry. Urine is a common matrix in anti-doping testing, while blood and tissue may be used in research settings. Detection windows depend on the assay, the sample matrix, and the compound's metabolism. Because cardarine is extensively metabolized, laboratories often target specific metabolites to improve sensitivity and confirmation. Reference standards are required for reliable quantification. Method validation includes checks for selectivity, linearity, and carryover.
A persistent misconception is that cardarine is a fat-burning drug or a safe alternative to anabolic steroids. No approved therapeutic product exists, and human safety data are limited. The tumor findings in rodents remain a central concern in scientific reviews. Products sold online may contain inaccurate labels, impurities, or different compounds entirely, which complicates any assessment of effects. Independent testing of such products has reported frequent mislabeling. For these reasons, discussions in the literature emphasize risks and unknowns rather than benefits.
Cardarine is not approved for human therapeutic use in any major jurisdiction. It appears on the World Anti-Doping Agency Prohibited List as a PPARδ agonist within the hormone and metabolic modulators category. Sports organizations test for it because it has been detected in athlete samples and seized products. Regulatory actions against marketed research chemical versions have occurred in several countries, though enforcement varies. Availability through unregulated channels complicates oversight.
| Property | Value | Notes |
|---|---|---|
| Common synonyms | GW501516; GW-1516; endurobol | GW501516 is the research code |
| Drug class | PPARδ agonist | Not a selective androgen receptor modulator |
| Molecular formula | C21H18F3NO3S2 | Established chemical formula |
| Molar mass | 453.5 g/mol | Calculated from the formula |
| Regulatory status | Prohibited in sport; not approved as medicine | Status varies by country |
Cardarine can be detected in biological samples and product materials using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The method separates compounds by chromatography and identifies them by mass-to-charge transitions, allowing low-level detection in urine or blood. Sample preparation often involves enzymatic hydrolysis, solid-phase extraction, or protein precipitation. Certified reference materials and isotope-labeled internal standards improve quantification. Detection windows depend on metabolism, matrix, and assay sensitivity, so no single universal window applies.
Regulatory treatment of cardarine differs by context and jurisdiction. In competitive sport, the World Anti-Doping Agency lists PPARδ agonists, including GW501516, as prohibited at all times. Outside sport, it lacks approval as a prescription medicine in major drug markets, and products sold for human consumption may be treated as unapproved drugs. Some countries also restrict importation or sale through general consumer protection and medicines laws. These classifications affect availability, testing, and legal risk without establishing therapeutic value.
Because cardarine is not an approved medicine, no pharmacopeial monograph defines its identity, purity, or storage requirements. Laboratories typically rely on in-house methods and reference standards when testing materials labeled as GW501516. Certificates of analysis may report purity and identity for a specific batch, but their scope varies and they do not guarantee safety or legal status. Independent verification can include high-performance liquid chromatography, mass spectrometry, nuclear magnetic resonance, and elemental analysis. The distinction between research chemical labeling and human use is significant because quality standards and oversight differ.
Stability of GW501516 depends on form, temperature, light exposure, and moisture. Solid reference material is typically stored frozen or refrigerated in a desiccator and protected from light. Solutions in organic solvents such as dimethyl sulfoxide are often kept frozen in aliquots to reduce freeze-thaw cycling. Aqueous solubility is low, so aqueous stock solutions can be difficult to prepare without cosolvents. Degradation may appear as changes in chromatographic purity or mass spectral signal. Stability studies are needed to establish shelf life for any specific preparation.
Quality assessment for cardarine samples usually combines identity, purity, and impurity testing. Nuclear magnetic resonance spectroscopy and mass spectrometry can confirm molecular structure, while high-performance liquid chromatography estimates purity. Certificates of analysis from testing laboratories may list these results, but they do not establish safety or legality. In the absence of approved manufacturing, products sold online may contain the wrong compound, variable amounts, or unlisted contaminants. Independent verification is therefore central to analytical work and to interpreting any reported biological activity.
Laboratory detection of GW501516 commonly uses liquid chromatography coupled with tandem mass spectrometry. The method can identify the parent compound or its metabolites in urine and blood after sample cleanup. Protein precipitation, solid-phase extraction, or enzymatic hydrolysis may precede analysis, depending on the matrix. Reference standards are required for accurate quantification and confirmation. Because the compound is not approved, testing often occurs in anti-doping, forensic, or research settings rather than routine clinical care. Results are reported with limits of detection and quantification.
== Etymology and definition == The term vagina is from Latin vāgīna, meaning "sheath" or "scabbard". The vagina may also be referred to as the birth canal in the context of pregnancy and childbirth. Although by its dictionary and anatomical definitions, the term vagina refers exclusively to the specific internal structure, it is colloquially used to refer to the vulva or to both the vagina and vulva. Using the term vagina to mean "vulva" can pose medical or legal confusion; for example, a person's interpretation of its location might not match another's interpretation of the location. Medically, one description of the vagina is that it is the canal between the hymen (or remnants of the hymen) and the cervix, while a legal description is that it begins at the vulva (between the labia). It may be that the incorrect use of the term vagina is due to not as much thought going into the anatomy of the female genitals as has gone into the study of male genitals, and that this has contributed to an absence of correct vocabulary for the external female genitalia among both the general public and health professionals. Because a better understanding of female genitalia can help combat sexual and psychological harm with regard to female development, researchers endorse correct terminology for the vulva.
== History == The efficacy of allogeneic cultured keratinocytes and fibroblasts in bovine collagen (Gintuit) was evaluated in two clinical studies in adults with insufficient gingival tissue. In each of the two studies, Gintuit was associated with an increase of at least 2 mm of gingival tissue in at least 50% of the study subjects. The overall clinical trial safety data for Gintuit included 121 subjects from both studies.
=== Overdose === There is limited information available on the acute toxicity of methocarbamol. Overdose is observed frequently in conjunction with CNS depressants such as alcohol or benzodiazepines and will have symptoms of nausea, drowsiness, blurred vision, hypotension, seizures, and coma. There are reported deaths with an overdose of methocarbamol alone or in the presence of other CNS depressants.
=== Origin === Several scholars, including the historian and lawyer Michelle Alexander, have stated that the war on drugs is one product of a political strategy known as "tough on crime." The emergence of the initiative in conservative politics can be traced to American campaigns in the mid-1950s. A 1966 U.S. News & World Report article covering Nixon's presidential campaign quoted him as saying that "the increasing crime rate can be traced directly to the spread of the corrosive doctrine that every citizen possesses an inherent right to decide for himself which laws to obey and when to disobey them." In the 1960s, as Nixon was making his first presidential run, crime rates began to rise dramatically in the United States. Street crime reportedly quadrupled, and homicide rates nearly doubled. Alexander writes that while scholars now attribute the rising crime rates to the surge in population of the baby boomer generation, conservatives then tied the increases to race. Crime reports were used as evidence of a loss of morality and of social stability in the wake of the Civil Rights Movement. The 1964 Republican presidential candidate Barry Goldwater made the connection during his campaign and helped to lay the groundwork for the tough on crime movement. In a 1964 speech, "Peace through Strength," Goldwater said, "Choose the way of the Johnson Administration and you have the way of mobs in the streets." Lyndon Johnson's administration was responsible for passing the Civil Rights Act of 1964.
Sources: en.wikipedia.org
=== Electrical neuromodulation === Several forms of electrical neuromodulation, including transcutaneous electrical nerve stimulation (TENS) and transcranial direct current stimulation (tDCS), have been used to treat fibromyalgia. In general, they help reduce pain and depression and improve functioning. Transcutaneous electrical nerve stimulation (TENS) is the delivery of pulsed electrical currents to the skin to stimulate peripheral nerves. TENS is widely used to treat pain and is considered to be a low-cost, safe, and self-administered treatment. As such, it is commonly recommended by clinicians to people suffering from pain. In 2019, an overview of eight Cochrane reviews was conducted, covering 51 TENS-related randomized controlled trials. The review concluded that the quality of the available evidence was insufficient to make any recommendations. A 2020 review concluded that transcutaneous electrical nerve stimulation may diminish pain in the short term, but there was uncertainty about the relevance of the results. Preliminary findings suggest that electrically stimulating the vagus nerve through an implanted device can potentially reduce fibromyalgia symptoms. However, there may be adverse reactions to the procedure. Noninvasive brain stimulation includes methods such as transcranial direct current stimulation and high-frequency repetitive transcranial magnetic stimulation (TMS). Both methods have been found to improve pain scores in neuropathic pain and fibromyalgia.
direction from one fluid layer to the next. Per Newton's law of viscosity, this momentum flow occurs across a velocity gradient, and the magnitude of the corresponding momentum flux is determined by the viscosity. The analogy with heat and mass transfer can be made explicit. Just as heat flows from high temperature to low temperature and mass flows from high density to low density, momentum flows from high velocity to low velocity. These behaviors are all described by compact expressions, called constitutive relations, whose one-dimensional forms are given here:
Jacobs Peter Meijer (2012), politician, member of the United States House of Representatives for Michigan's 3rd congressional district, grandson of Frederik Meijer, founder of Meijer hypermarkets Shaun Abreu (2013), politician, Democratic nominee for New York City's 7th City Council district Julia Salazar* (2014), member of New York State Senate for Democratic Socialists of America
Sources: en.wikipedia.org
Meat can be preserved by salting it, cooking it at or near 100 °C (212 °F) in some kind of fat (such as lard or tallow), and then storing it immersed in the fat. These preparations were popular in Europe before refrigerators became ubiquitous. They are still popular in France, where the term originates. The preparation will keep longer if stored in a cold cellar or buried in cold ground.
Arsenic biochemistry is the set of biochemical processes that can use arsenic or its compounds, such as arsenate. Arsenic is a moderately abundant element in Earth's crust, and although many arsenic compounds are often considered highly toxic to most life, a wide variety of organoarsenic compounds are produced biologically and various organic and inorganic arsenic compounds are metabolized by numerous organisms. This pattern is general for other related elements, including selenium, which can exhibit both beneficial and deleterious effects. Arsenic biochemistry has become topical since many toxic arsenic compounds are found in some aquifers, potentially affecting many millions of people via biochemical processes.
From January 1968 onward there would be two yearly intakes of national servicemen undergoing nine months of military training. The air strike on Sacatxai also marked a fundamental shift in South African tactics, as the SADF had for the first time indicated a willingness to strike at SWALA on foreign soil. Although Angola was then an overseas province of Portugal, Lisbon granted the SADF's request to mount punitive campaigns across the border. In May 1967 South Africa established a new facility at Rundu to coordinate joint air operations between the SADF and the Portuguese Armed Forces, and posted two permanent liaison officers at Menongue and Cuito Cuanavale. As the war intensified, South Africa's case for annexation in the international community continued to decline, coinciding with an unparalleled wave of sympathy for SWAPO. Despite the ICJ's advisory opinions to the contrary, as well as the dismissal of the case presented by Ethiopia and Liberia, the UN declared that South Africa had failed in its obligations to ensure the moral and material well-being of the indigenous inhabitants of South West Africa, and had thus disavowed its own mandate. The UN thereby assumed that the mandate was terminated, which meant South Africa had no further right to administer the territory, and that henceforth South West Africa would come under the direct responsibility of the General Assembly. The post of United Nations Commissioner for South West Africa was created, as well as an ad hoc council, to recommend practical means for local administration.
Vaccinations given to children, adolescents, or adults are generally safe. Adverse effects, if any, are generally mild. The rate of side effects depends on the vaccine in question. Some common side effects include fever, pain around the injection site, and muscle aches. Additionally, some individuals may be allergic to ingredients in the vaccine. The MMR vaccine is rarely associated with febrile seizures. Host-("vaccinee")-related determinants that render a person susceptible to infection, such as genetics, health status (underlying disease, nutrition, pregnancy, sensitivities or allergies), immune competence, age, and economic impact or cultural environment can be primary or secondary factors affecting the severity of infection and response to a vaccine. Elderly (above age 60), allergen-hypersensitive, and obese people have susceptibility to compromised immunogenicity, which prevents or inhibits vaccine effectiveness, possibly requiring separate vaccine technologies for these specific populations or repetitive booster vaccinations to limit virus transmission. Severe side effects are extremely rare. Varicella vaccine is rarely associated with complications in immunodeficient individuals, and rotavirus vaccines are moderately associated with intussusception. At least 19 countries have no-fault compensation programs to provide compensation for those with severe adverse effects of vaccination. The United States' program is known as the National Childhood Vaccine Injury Act, and the United Kingdom employs the Vaccine Damage Payment.
Sources: en.wikipedia.org
No. Cardarine is GW501516, a PPARδ agonist, while SARMs act on androgen receptors. The two classes are often grouped in informal discussions despite different mechanisms.
No. It has no approved medical indication in any country. Regulatory agencies have not cleared it for treatment or prevention of any condition.
Early clinical work stopped after rodent carcinogenicity findings. Those animal results raised concerns about long-term human risk, although direct human evidence is lacking. The human relevance of the tumors remains an open scientific question.
No. Cardarine has not received approval for human therapeutic use in major jurisdictions. It remains an investigational compound.