This is a working overview of AOD-9604, written for readers who want more than a one-paragraph summary but less than a textbook.
Reviewed 2025-11-06. Anything still debated is marked as such rather than presented as settled.
Regulatory treatment of AOD-9604 has varied. In sports anti-doping, the peptide became widely discussed during a 2013 investigation into an Australian professional sports club. Authorities at the time debated whether it fell under prohibitions on growth hormone and related substances. Later clarifications and updated lists have addressed the compound in different ways. Anyone seeking current status should consult the latest applicable rules, and commercial supply for human use is not authorized in major markets.
Research interest in AOD-9604 often focuses on whether it can influence lipid metabolism without the growth-promoting or glucose-related effects of full-length hGH. This question remains unresolved, and findings depend on model, dose, and measurement method. Some reviews treat the peptide as a historical obesity candidate rather than an active therapeutic. Others cite it in discussions of peptide fragments, metabolic signaling, and performance-enhancing substances. Clear conclusions are limited by the small number of rigorous, independent human studies.
AOD-9604 has been investigated primarily as a potential treatment for obesity and related metabolic conditions. Early laboratory work examined its effects on fat cells, and later studies moved into animal models and human clinical trials. Some trials reportedly reached Phase II, but the program did not lead to an approved medicine. Published summaries often note that weight-loss results were modest or inconsistent. The full trial data are not all publicly available in detail.
AOD-9604 is a synthetic peptide whose sequence matches the C-terminal fragment of human growth hormone, specifically residues 176 through 191. This region differs from the full hormone in its receptor interactions. The peptide is not a growth hormone secretagogue and does not bind the growth hormone receptor in the same manner. Researchers have examined it for effects on lipid metabolism, but its exact pharmacological profile remains an active area of study.
Development of AOD-9604 began in the 1990s as scientists sought to isolate metabolic effects of growth hormone without its growth-promoting actions. Early laboratory work focused on fat cells and animal models. Several human trials followed, examining changes in body composition and fat mass. Results have been mixed, and the peptide has not progressed to widespread clinical approval. Interest continues in research settings, particularly regarding its mechanism and potential metabolic targets.
Regulatory status varies by country. In the United States, AOD-9604 is not approved as a prescription drug. It is sometimes sold as a research chemical or dietary supplement, though such marketing may fall outside legal frameworks. The World Anti-Doping Agency prohibits its use in sport. Researchers must obtain it through legitimate suppliers and follow institutional rules. Its legal classification continues to evolve as authorities increasingly assess peptide products more broadly.
| Property | Value | Notes |
|---|---|---|
| Primary research area | Obesity and metabolic regulation | Studied in cell, animal, and human models |
| Highest reported trial phase | Phase II | Public summaries describe mixed results |
| Common route in trials | Subcutaneous injection | Typical for peptide therapeutics |
| Regulatory example | 2013 Australian anti-doping review | Classification was debated at the time |
| Approval status | Not approved as a human medicine | Status can change by jurisdiction |
AOD-9604 is listed as a prohibited substance in sport by the World Anti-Doping Agency. It falls under the peptide hormones, growth factors, related substances, and mimetics class on the prohibited list. Anti-doping organizations treat its presence in an athlete's sample as an adverse finding unless a therapeutic use exemption applies. The prohibition reflects concerns about performance enhancement in competitive settings and the difficulty of distinguishing exogenous peptide use from endogenous hormone fragments.
Detection of AOD-9604 in biological samples relies on analytical techniques capable of distinguishing a small synthetic peptide from related endogenous sequences. Liquid chromatography coupled with tandem mass spectrometry is commonly used for confirmatory analysis. Sample preparation may involve immunoaffinity enrichment or solid-phase extraction to concentrate the peptide. Because the molecule is small and may be present at low concentrations, assay sensitivity and specificity are ongoing analytical challenges. Laboratories also validate methods against reference materials when available.
Regulatory interest in AOD-9604 increased after high-profile anti-doping cases involving peptide products. In some cases, the substance was supplied under alternative names or in compounded preparations, complicating traceability. Sports tribunals and anti-doping panels have discussed whether the peptide was explicitly banned at the time of use, leading to clarifications by the World Anti-Doping Agency. For consumers and researchers, the legal status can vary by jurisdiction, and products marketed as research chemicals may lack independent quality verification.
AOD-9604 is a synthetic peptide modeled on the C-terminal region of human growth hormone. It corresponds to residues 176-191 of the 191-amino-acid hGH sequence. The fragment is not the full hormone and lacks the receptor-binding region associated with growth and metabolic effects of hGH. Researchers developed it to isolate a specific portion of hGH for study. Its exact sequence and length are often stated in peptide catalogs and patents.
The peptide is frequently described as a growth hormone fragment, although it is chemically distinct from full-length hGH. AOD-9604 contains 16 amino acids and includes two cysteine residues that can form an intramolecular disulfide bond. In solution, this structural feature can influence folding, aggregation, and stability. Published descriptions sometimes call it hGH 176-191 or AOD9604, with spacing and capitalization varying. Such naming differences can complicate literature searches, database entries, and product verification.
AOD9604 is commonly supplied as a white to off-white lyophilized powder. The powder is typically stored at -20 °C or below, protected from light and moisture, because peptides can degrade through oxidation, hydrolysis, or aggregation. If it is reconstituted for laboratory use, an appropriate aqueous buffer or solvent is chosen, and the solution is kept cold and handled to avoid repeated freeze-thaw cycles. These practices support stability but do not imply suitability for human use.
Identity and purity are usually assessed with reversed-phase high-performance liquid chromatography and mass spectrometry. Reversed-phase HPLC separates the peptide from related impurities and can estimate purity by ultraviolet absorbance, while mass spectrometry confirms the molecular mass and detects modifications. Peptide mapping, amino acid analysis, and disulfide mapping may be used when the sequence or disulfide arrangement must be verified. Because AOD9604 contains cysteine residues, oxidation and disulfide isomers are possible quality concerns in synthetic batches.
=== Availability === Drostanolone propionate appears to no longer be marketed. It was previously available in the United States, Europe, and Japan. In Europe, it was specifically marketed in the United Kingdom, Germany, Belgium, France, Spain, Portugal, Italy, and Bulgaria.
==== Leaves ==== Edible raw or cooked (depending on hardiness), the leaves can be used in many ways. They are perhaps most commonly added to clear broth-based soups, such as the Filipino dishes tinola and utan. Tender moringa leaves, finely chopped, are used as garnish for vegetable dishes and salads, such as the Kerala dish thoran. It is also used in place of or along with coriander leaves (cilantro). The leaves are also cooked and used in ways similar to spinach, and are commonly dried and crushed into a powder for soups and sauces. For long-term use and storage, moringa leaves may be dried and powdered to preserve their nutrients. Sun, shade, freeze and oven drying at 50–60 °C are all acceptable methods, albeit variable in their retention efficacy of specific micro- and macronutrients. The powder is commonly added to soups, sauces, and smoothies. Owing to its high nutritional density, moringa leaf powder is valued as a dietary supplement and may be used to enrich food products ranging from dairy, such as yogurt and cheese, to baked goods, such as bread and pastries, with acceptable palatability.
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Sources: en.wikipedia.org
EAS Sports Nutrition (formerly Experimental & Applied Sciences) was a distributor of creatine nutritional supplements with approximately 300 staff, annual sales exceeding $300 million, and offices/distributors in 54 countries.
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Sources: en.wikipedia.org
== Interpretation == Interpretation of quality control data involves both graphical and statistical methods. Quality control data is most easily visualized using a Levey–Jennings chart. The dates of analyses are plotted along the x-axis and control values are plotted along the y-axis. The pattern of plotted points provides a simple way to detect increased random error and shifts or trends in calibration. In clinical laboratories, Levey-Jennings charts are commonly used to identify deviations, shifts and trends in analytical performance during laboratory quality control. Levey-Jennings charts are often interpreted with Westgard rules such as 1-2s,1-3s, 2-2s, and R-4s rule to identify specific error patterns and early detection of both systematic and random errors. As a result, the reliability of test results improves, and laboratories can better meet accreditation standards such as ISO 15189.
The rising interest in chemical biology has led to several journals dedicated to the field. Nature Chemical Biology, created in 2005, and ACS Chemical Biology, created in 2006, are two of the most well-known journals in this field, with impact factors of 14.8 and 4.0 respectively. Chemical Biology is regarded as a distinct field, but many scientists with formal academic education in Biochemistry or Molecular Biology have also contributed to Chemical Biology, showing the overlap between these mentioned fields.
== Side effects == Common side effects include abdominal pain, decreased appetite, nausea, erectile dysfunction, feeling tired, dizziness, and urinary retention. Atomoxetine has been found to modestly increase heart rate and blood pressure. A 2020 meta-analysis found that atomoxetine was associated with appetite suppression, weight loss, and hypertension, rating it as a "potentially least preferred agent based on safety" for treating ADHD. The drug can produce insomnia as a side effect, especially in CYP2D6 poor metabolizers, but has less overall risk of insomnia than methylphenidate or amphetamines. As of 2019, safety in pregnancy and breastfeeding is not clear; a 2018 review stated that, "because of lack of data, the treating physician should consider stopping atomoxetine treatment in women with ADHD during pregnancy." Serious side effects may include angioedema, liver problems, psychosis, heart problems, suicide, and aggression. Atomoxetine does not appear to increase the risk of stroke in adults nor the risk of sudden death. On the other hand, the FDA label notes that sudden death, stroke, and heart attack have been reported in association with atomoxetine and that such complications may be more likely in people with pre-existing cardiovascular disease. The drug can dramatically increase blood pressure in people with central autonomic failure, even at very low doses. Rarely, atomoxetine can cause drug-induced liver injury or liver failure. Atomoxetine may increase the likelihood of aggression and hostility in children with ADHD, although such events are rare. The U.S.
Sources: en.wikipedia.org
No major medicines regulator appears to have approved AOD-9604 for human therapeutic use. It has been studied in clinical trials, but those programs did not result in a marketed drug.
It became prominent during a 2013 Australian sports investigation that examined whether it was a prohibited growth-hormone-related substance. Subsequent interpretations and list updates have varied, so current rules should be checked directly.
Published summaries generally report limited or inconsistent weight-loss effects, and complete trial data are not widely available. The studies were not sufficient to establish it as an effective obesity treatment.
AOD-9604 is a synthetic peptide fragment of human growth hormone, corresponding to amino acids 176-191. It is studied for potential effects on fat metabolism, but it is not approved as a drug in most countries. Its exact mechanism remains under investigation.