The short version of GW501516 fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2025-09-21 and is reviewed periodically as new material appears.
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.
Cardarine is a common name for the investigational chemical GW501516, also written GW-1516. It was developed as a peroxisome proliferator-activated receptor delta agonist for metabolic conditions such as dyslipidemia. Early research focused on lipid handling and energy use in skeletal muscle and other tissues. The compound was never approved as a medicine. In public discussion, it is often grouped with performance-enhancing substances, although its receptor target differs from that of anabolic steroids or selective androgen receptor modulators. Regulatory and health authorities have issued warnings about its use.
GW501516 acts on PPARδ, a nuclear receptor that helps regulate fatty acid oxidation and energy homeostasis. In animal studies, activation of this receptor was associated with increased endurance and changes in lipid metabolism. Human trials examined effects on blood lipids and other metabolic markers, but the compound did not advance to approval. Rodent studies later reported tumors in multiple tissues at doses used in those experiments. Whether those findings translate to human risk remains uncertain, and the clinical relevance of the animal data is still debated.
Regulatory bodies treat GW501516 as a prohibited substance in competitive sport. The World Anti-Doping Agency added it to the prohibited list, and it falls under classes covering metabolic modulators and hormone-related agents. It is not approved by drug regulators for human use, and it is not a lawful dietary supplement. Products sold under the cardarine name may contain unlisted ingredients or different compounds. Because no approved product exists, quality and identity are not guaranteed by pharmaceutical manufacturing standards.
| 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 |
Laboratory detection of cardarine typically involves sample preparation followed by chromatographic separation and mass spectrometric identification. Urine is the most common matrix for anti-doping tests, though blood and hair have also been explored. Methods can target the parent compound or its metabolites, depending on the expected window of detection. Reference standards are required for accurate quantification. Matrix effects and dilution can influence results, so laboratories use internal standards and validation protocols. The exact detection window varies with dose, route, and individual metabolism.
A common misconception is that cardarine has been proven safe for human use. In reality, human clinical data are limited, and long-term animal studies have raised concerns about cancer. Another misconception is that it is a supplement or vitamin-like compound. It is a synthetic research chemical with no approved medical indication. Scientific discussion often focuses on its mechanism and detection rather than therapeutic use. Regulatory and anti-doping literature treats it primarily as a prohibited substance.
GW501516 acts as a ligand for PPAR delta, a nuclear receptor that regulates transcription of genes involved in fatty acid oxidation and energy use. Activation of this receptor in skeletal muscle shifts metabolism toward fat burning in animal models. The compound does not burn fat directly; it changes gene expression over hours to days. Researchers study it to understand metabolic flexibility and exercise adaptation. Effects observed in rodents are not automatically expected in humans.
Preclinical research reported that GW501516 increased running endurance in mice and improved lipid profiles in some animal species. Early human trials explored effects on high-density lipoprotein cholesterol, triglycerides, and glucose handling, but the program was discontinued. Published human data are sparse and do not establish efficacy for any condition. Studies also examined PPAR delta in cancer biology, with conflicting findings across models. The relationship between receptor activation, tissue context, and disease risk remains an active area of investigation.
Anti-doping laboratories identify GW501516 and its metabolites using liquid chromatography-tandem mass spectrometry. Urine is the usual matrix, and detection can occur after the parent compound has cleared from blood. The exact detection window depends on dose, formulation, individual metabolism, and assay sensitivity. Because the compound is prohibited at all times, athletes are subject to testing in and out of competition. Analytical methods continue to improve as new metabolites and designer analogs are characterized.
The sans-culottes ... campaigned for a more democratic constitution, price controls, harsh laws against political enemies, and economic legislation to assist the needy. They expressed their demands through petitions of the sections presented to the assemblies (the Legislative, and Convention) by the delegates. The sans-culottes had a third way of applying pressure to achieve their demands: the police and the courts received thousands of denunciations of traitors and supposed conspirators. The height of their influence spanned roughly from the original overthrow of the monarchy in 1792 to the Thermidorian Reaction in 1794. Throughout the revolution, the sans-culottes provided the principal support behind the more radical and anti-bourgeoisie factions of the Paris Commune, such as the Enragés and the Hébertists, and were led by populist revolutionaries such as Jacques Roux and Jacques Hébert.
Upon learning that the Top Hat name was already trademarked, Smith and Pappe changed its name to the Sonic brand in 1959. The new name worked with their existing slogan, "Service with the Speed of Sound". After the name change, the first Sonic sign was installed at the Stillwater Top-Hat Drive-In. This was the first of three Sonics in Stillwater. The original Sonic with the first sign was demolished and renovated in May 2015. Although Smith and Pappe were being asked to help open new franchise locations, no real royalty plan was in place. The pair decided to have their paper company charge an extra penny for each Sonic-label hamburger bag it sold. The proceeds would then be split between Smith and Pappe. The first franchise contracts under this plan were drawn up, but still no joint marketing plan, standardized menu, or detailed operating requirements were in place.
=== Pseudobulbar affect === In 2010, the FDA approved the combination drug dextromethorphan/quinidine under the brand name Nuedexta for the treatment of pseudobulbar affect (uncontrollable laughing/crying). Dextromethorphan is the active therapeutic agent in the combination; quinidine merely serves to inhibit the enzymatic degradation of dextromethorphan and thereby increase its circulating concentrations via inhibition of CYP2D6.
Sources: en.wikipedia.org
The study Radiological Evaluation of Breasts Reconstructed with Lipo-modeling (2005) indicates that the therapeutic efficacy of fat-graft breast reconstruction in the treatment of radiation therapy damage to the chest, the incidental reduction of capsular contracture, and the improved coverage of the breast implants. In fat-graft breast augmentation procedures, there is the risk that the adipocyte tissue can become necrotic, undergo metastatic calcification, develop cysts, and agglomerate into palpable lumps. Although the cause of metastatic calcification is unknown, the post-procedure biological changes occurred to the fat-graft tissue resemble the tissue changes usual to breast surgery procedures, such as reduction mammoplasty. The pre-procedure mammograms were negative for the presence of the malignant neoplasms of breast cancer. In the 17-patient cohort, two women developed breast cancer after the breast augmentation: one woman at 12 months and the second woman at 92 months. Further, the study Cell-assisted Lipotransfer for Cosmetic Breast Augmentation: Supportive Use of Adipose-Derived Stem/Stromal Cells (2007), in a 40-woman cohort, the inclusion of adipose stem cells in the grafts of adipocyte fat increased the rate of the corrective success of the autologous fat-grafting procedure.
=== Hematopoietic stem cell transplantation === Hematopoietic stem cell transplantation (HSCT) involves replacing the dysfunctional stem cells from a person with sickle cell disease with healthy cells from a well-matched donor. Finding a well matched donor is essential to the process' success. Different types of donors may be suitable, including umbilical cord blood, human leukocyte antigen (HLA) matched relatives, or HLA-matched donors who are not related to the person being treated. Risks associated with HSCT can include graft-versus-host disease, failure of the graft, and other toxicity related to the transplant.
Rosett (1953), dean of the University of Chicago Booth School of Business, Arts and Sciences at Washington University in St. Louis, and chairman of National Bureau of Economic Research Robert L. Friedheim (1955), former director of the USC School of International Relations Calvin B. T. Lee (1955), former chancellor of University of Maryland, Baltimore County and acting president of Boston University Robert E. Paaswell (1956), civil engineer, former interim president of City College of New York and CEO of Chicago Transit Authority Kenneth Gros Louis (1959), chancellor of Indiana University system Richard A. Merrill (1959), 7th dean of the University of Virginia School of Law Stephen Joel Trachtenberg (1959), president of the University of Hartford and of George Washington University David C. Levy (1960), dean of the Parsons School of Design and president of the Corcoran Gallery of Art Steven M. Cahn (1966), provost and acting president of Graduate Center of the City University of New York Dimitri B. Papadimitriou (1970), executive vice president and provost of Bard College David Rubin (1970), professor of communications and dean of S. I. Newhouse School of Public Communications Alan Cooper (1971), provost of Jewish Theological Seminary of America, former member of Sha Na Na William Germano (1972), dean of the faculty of humanities and social sciences at Cooper Union, former editor-in-chief of Columbia University Press Saul Levmore (1973), commercial law scholar, former dean of the University of Chicago Law School Ronald Mason Jr.
=== Preventing and treating infection === To lower the bacterial count in wounds, therapists may use topical antibiotics, which kill bacteria and can also help by keeping the wound environment moist, which is important for speeding the healing of chronic wounds. Some researchers have experimented with the use of tea tree oil, an antibacterial agent which also has anti-inflammatory effects. Disinfectants are contraindicated because they damage tissues and delay wound contraction. Further, they are rendered ineffective by organic matter in wounds like blood and exudate and are thus not useful in open wounds. A greater amount of exudate and necrotic tissue in a wound increases likelihood of infection by serving as a medium for bacterial growth away from the host's defenses. Since bacteria thrive on dead tissue, wounds are often surgically debrided to remove the devitalized tissue. Debridement and drainage of wound fluid are an especially important part of the treatment for diabetic ulcers, which may create the need for amputation if infection gets out of control. Mechanical removal of bacteria and devitalized tissue is also the idea behind wound irrigation, which is accomplished using pulsed lavage. Removing necrotic or devitalized tissue is also the aim of maggot therapy, the intentional introduction by a health care practitioner of live, disinfected maggots into non-healing wounds. Maggots dissolve only necrotic, infected tissue; disinfect the wound by killing bacteria; and stimulate wound healing.
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 is a PPARδ agonist, while selective androgen receptor modulators act on androgen receptors. The two classes differ in receptor target and downstream effects.