research chemical comes up often in conversation and rarely with the context attached. Here we lay out the basics in order, then work through the practical considerations.
Updated 2026-01-20. 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.
At the molecular level, GW501516 binds and activates PPARδ, a nuclear receptor that regulates transcription. Activation shifts expression of genes involved in fatty acid oxidation, energy expenditure, and lipid transport in skeletal muscle and liver. Animal studies report increased endurance and altered lipid profiles after exposure. Human data are limited to small trials and do not establish long-term safety or efficacy. PPARδ also has roles in cell proliferation, so the relationship between activation and cancer risk remains an open question.
Published literature on cardarine includes in vitro assays, rodent experiments, and a small number of human studies. Reports describe effects on exercise capacity and lipid metabolism in animals, while human evidence is sparse. Many online descriptions present the compound as a proven endurance aid, a claim not supported by regulatory approval or large clinical trials. Analytical studies focus on identifying the parent compound and its metabolites in biological samples. Important uncertainties include species differences, dose-response relationships, and the relevance of rodent tumor findings to humans.
| 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 |
== Legality == Nicomorphine is regulated in much the same fashion as morphine worldwide but is a Schedule I controlled substance in the United States and was never introduced there. Nicomorphine may appear on rare occasions on the European black market and other channels for unsupervised opioid users. It can be produced as part of a mixture of salts and derivatives of morphine by end users by means of treating morphine with nicotinic anhydride or related chemicals in an analogue of the heroin homebake process. CAS number of hydrochloride: 35055-78-8 US DEA ACSCN: 9312 Free base conversion ratios of salts: Nicomorphine Hydrochloride: 0.93
Although Moderna has stated that it will not seek enforcement of its patents during the pandemic, a patent waiver (voluntary or involuntary) would not force a vaccine manufacturer to disclose the complete knowledge (i.e., know-how) for making a vaccine, which is not found in patents. The World Health Organization (WHO) has promoted the COVID-19 Technology Access Pool to facilitate disclosures, but participation is voluntary and none of the vaccine manufacturers have joined. Without access to the original vaccine manufacturer's know-how, reverse engineering the manufacturing process is difficult and expensive with no guarantee of success. Even if a third party succeeds, they must prove that fact to the satisfaction of regulatory authorities. For small molecule drugs, proving bioequivalence of a generic drug to the original drug costs only about US$1 to $2 million; but for biologics, proving biosimilarity of a third-party product to the original product requires clinical trials, with costs ranging from US$100 to $250 million. One financial analyst specializing in pharmaceuticals estimated that it would take a minimum of two years after patent waiver for the first independent reproductions of a COVID-19 vaccine to reach the market, which may be too long to have any net impact on global public health. While discussing the idea of "open source" COVID-19 vaccine manufacturing, Bill Gates said: "There's not a single additional vaccine that would have come out of that ....
== OSHA Standards regarding Dry Kiln Facilities == 1910.265(f)(3)(i)(a): Main kiln doors shall be provided with a method of holding them open while kiln is being loaded. 1910.265(f)(3)(i)(b): Counterweights on vertical lift doors shall be boxed or otherwise guarded. 1910.265(f)(3)(i)(c): Adequate means shall be provided to firmly secure main doors, when they are disengaged from carriers and hangers, to prevent toppling. 1910.265(f)(3)(ii)(a): If operating procedures require access to kilns, kilns shall be provided with escape doors that operate easily from the inside, swing in the direction of exit, and are located in or near the main door at the end of the passageway. 1910.265(f)(3)(ii)(b): Escape doors shall be of adequate height and width to accommodate an average size man. 1910.265(f)(4): Pits. Pits shall be well ventilated, drained, and lighted, and shall be large enough to safely accommodate the kiln operator together with operating devices such as valves, dampers, damper rods, and traps.
=== Europe === An example from Europe is the implementation of border controls on travel to and from Svalbard, which maintains a policy of free migration under the Svalbard Treaty and the Schengen Area, which includes the rest of Norway. Other examples of effective internal border controls in Europe include the closed cities of certain CIS members, areas of Turkmenistan that require special permits to enter, restrictions on travel to the Gorno-Badakhshan Autonomous Region in Tajikistan, and (depending on whether Northern and Southern Cyprus are considered separate countries) the Cypriot border. Similarly, Iraq's Kurdistan region maintains a separate, more liberal visa and customs regime from the rest of the country, even allowing visa-free entry for Israelis, whilst the rest of the country bans them from entering. Denmark also maintains a complex system of subnational countries which, unlike the Danish mainland, are outside the European Union and maintain autonomous customs policies. In addition to the numerous closed cities of Russia, parts of 19 subjects of the Russian Federation are closed for foreigners without special permits and are consequently subject to internal border controls. Another complex border-control situation in Europe involves the United Kingdom. Whilst the crown dependencies are within the Common Travel Area, neither Gibraltar nor the sovereign British military exclaves of Akrotiri and Dhekelia are.
Sources: en.wikipedia.org
Joseph Sternberg of The Wall Street Journal said that Beijing's failures of food-safety act are "much more pernicious, and disgraceful, than at first it appears ... [not only has this] milk poisoned thousands of infants with melamine, it also poisons the society at large with fear". Lawyer Bill Marler, speaking at a food safety conference in Beijing, said that this food scare has harmed the "made in China" brand abroad. He remarked: "If this product had gotten into the United States, it would have been 'game over' for a lot of products in China." An op-ed in The New York Times compared this to the "swill milk scandal" in New York in the 1850s in which 8,000 children reportedly died when cows were fed swill and the milk produced was then whitened with plaster of Paris, thickened with starch and eggs, and hued with molasses. An article published in the San Francisco Chronicle likened the regulatory failures of the milk scandal to the distressed assets in the subprime mortgage crisis, and questioned whether regulators in either case ever understood or truly monitored the extent of the danger.
Myxedema coma is an extreme or decompensated form of hypothyroidism and, while uncommon, is potentially lethal. A person may have laboratory values identical to a "normal" hypothyroid state, but a stressful event (such as an infection, myocardial infarction, or stroke) precipitates the myxedema coma state, usually in the elderly. Primary symptoms of myxedema coma are altered mental status and low body temperature. Low blood sugar, low blood pressure, hyponatremia, hypercapnia, hypoxia, slowed heart rate, and hypoventilation may also occur. Myxedema, although included in the name, is not necessarily seen in myxedema coma. Coma is also not necessarily seen in myxedema coma, as patients may be obtunded without being comatose. According to newer theories, myxedema coma could result from allostatic overload in a situation where the effects of hypothyroidism are amplified by nonthyroidal illness syndrome.
The Centre, the BVP and the DNVP jointly supported legislation to expand religious schools. In the same year, Wilhelm Marx was the Centre's candidate in the presidential elections. In the second round, combining the support of the Weimar coalition parties, he gained 45.3% of the vote and finished a close second to the victorious right-wing candidate Paul von Hindenburg with 48.3%. In May 1926 Chancellor Luther resigned and Marx again assumed the chancellorship. In June 1928, the general elections resulted in losses for the government parties and in gains for the Social Democrats and the Communists. The Grand Coalition of 1923 was revived, this time including the BVP and the Social Democrat Hermann Müller became chancellor. During the years of the Weimar Republic, debates about the Catholic character of the party, as described above, persisted. The left wing of the party, led by Erzberger and Wirth, had close ties to the Catholic workers' associations led by Joseph Joos. Some politicians on the right wing of the party, including Heinrich Brauns and Franz von Papen, advocated a move towards the right and a closer cooperation with the national movements. The middle-ground emphasised their loyalty to the Church and rejected both extremes. To mediate the tension between the wings and to strengthen their ties with the Bishops, the party in September 1928 did not elect the two favourites Joseph Joos and Adam Stegerwald, but rather the cleric Ludwig Kaas as chairman.
Sources: en.wikipedia.org
=== New Zealand === PCP was used in New Zealand as a timber preservative and antisapstain treatment, but since 1988 is no longer used. It was also sold as a moss killer to the general public (by Shell, at least) in the form of a 115g/L aqueous solution and labelled as a poison.
=== Energy drinks === High caffeine consumption in energy drinks (at least one liter or 320 mg of caffeine) was associated with short-term cardiovascular side effects including hypertension, prolonged QT interval, and heart palpitations. These cardiovascular side effects were not seen with smaller amounts of caffeine consumption in energy drinks (less than 200 mg).
The first benzodiazepine, chlordiazepoxide (Librium), was synthesized in 1955 by Leo Sternbach while working at Hoffmann–La Roche on the development of tranquilizers. The pharmacological properties of the compounds prepared initially were disappointing, and Sternbach abandoned the project. Two years later, in April 1957, co-worker Earl Reeder noticed a "nicely crystalline" compound left over from the discontinued project while spring-cleaning in the lab. This compound, later named chlordiazepoxide, had not been tested in 1955 because of Sternbach's focus on other issues. Expecting pharmacology results to be negative and hoping to publish the chemistry-related findings, researchers submitted it for a standard battery of animal tests. The compound showed very strong sedative, anticonvulsant, and muscle relaxant effects. These impressive clinical findings led to its speedy introduction throughout the world in 1960 under the brand name Librium. Following chlordiazepoxide, diazepam marketed by Hoffmann–La Roche under the brand name Valium in 1963, and for a while the two were the most commercially successful drugs. The introduction of benzodiazepines led to a decrease in the prescription of barbiturates, and by the 1970s, they had largely replaced the older drugs for sedative and hypnotic uses. The new group of drugs was initially greeted with optimism by the medical profession, but gradually, concerns arose; in particular, the risk of dependence became evident in the 1980s.
The Urabe strain remains in use in a number of countries; MMR with the Urabe strain is much cheaper to manufacture than with the Jeryl Lynn strain, and a strain with higher efficacy along with a somewhat higher rate of mild side effects may still have the advantage of reduced incidence of overall adverse events. A Cochrane review found that, compared with placebo, MMR vaccine was associated with fewer upper respiratory tract infections, more irritability, and a similar number of other adverse effects. Naturally acquired measles often occurs with immune thrombocytopenic purpura (ITP, a purpuric rash and an increased tendency to bleed that resolves within two months in children), occurring in 1 to 20,000 cases. Approximately 1 in 40,000 children are thought to acquire ITP in the six weeks following an MMR vaccination. ITP below the age of six years is generally a mild disease, rarely having long-term consequences.
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.
Cardarine is a common name for the investigational compound GW501516. It acts as a PPARδ agonist and is not approved for human use. It is prohibited in sport.