5a-Hydroxy Laxogenin which tests have shown that protein synthesis increased by over 200%, the key to lean muscle growth and accelerated repair. (6) The Dianabol® formulation also contains various compounds to increase anabolic properties and protein synthesis. There have been several products on the market in the past that only got mediocre results. Research in the Americas was only done in Brazil, which alone includes 7 of the 19 studies. The authors provided sufficient information in the methods section so that, by consensus between the candy96.fun reviewers (RM/PB/LF), we were confident to include the study for extraction and analysis. For one study, the study design (retrospective database analysis) did not qualify for the analysis by ToxRtool and was individually assessed by the study team . All quality appraisal results can be found in Supplementary file 1. Additional articles were excluded after full-text assessment for the reasons mentioned in the flowchart (Fig. 1). We retrieved a total of 24 full-text articles from these different sources. While metandienone is controlled and no longer medically available in the U.S., it continues to be produced and used medically in some other countries. Generic production shut down two years later, when the FDA revoked metandienone's approval entirely in 1985. Following further FDA pressure, CIBA withdrew Dianabol from the U.S. market in 1983. With this systematic review and meta-analysis, we present significant findings for fake AAS on the black market. Underground laboratories emerged both locally and in countries with lax legal regulations and it is described that an 'anabolic steroid tourism' and large networks of online resellers emerged, simplifying the illegal acquisition of anabolic steroids . We demonstrate that substantial proportions of AAS found on the black market are fake. This section collects any data citations, data availability statements, or supplementary materials included in this article. All data generated or analyzed during this study is included in this published article and its supplementary information files. AC provided methodological expertise on biochemical analysis of the samples. These harm reduction interventions may be especially effective in this user population as these drugs are used for an average of 20 weeks , compared to recreational illicit drug use that is often only used sporadically. Unfortunately, there are currently major limitations in identifying these fraudulent products by users and such services may become a cornerstone in accessing this hard-to-access user population . In addition to promoting hypertrophy, Dianabol also enhances muscle strength, allowing athletes to lift heavier weights and perform at higher intensities. Users often report significant increases in body weight and muscle size within weeks of starting a cycle. In addition to its anabolic properties, Dianabol also boosts glycogenolysis, helping the body to utilize carbohydrates more effectively. The use of such substances may carry legal, health, and ethical implications. This product is all about protein...getting it, saving it, and using it to build rock-hard muscle. Likewise, anti-catabolic, or antiproteolytic (the more specifically correct term) compounds are defined as those which decrease amino acid shuttling out of muscle (also called protein-sparing). LA Pharma S.r.l. produces the full range finished products of biosimilar anabolic/androgen hormones for therapeutic use under Good Manufacturing Practice (GMP) The very wide range in the proportions of counterfeit or substandard AAS from the black market shows the uncertainty about quality, thus leaving users with unpredictable risks. Rather than caused by study design issues, the differing proportions of counterfeit or substandard AAS reflect the selection of the tested AAS samples, with real differences in the quality of AAS found on the black market. With this systematic review and meta-analysis, we demonstrate that substantial mean proportions of black-market AAS are counterfeit and of substandard quality. The very wide range in proportions of counterfeit or substandard black market AAS puts the user in a situation of unpredictable uncertainty. ‘Drug checking’ allows people who consume illegal and legal drugs acquired from unregulated drug markets to submit samples for chemical analysis and receive feedback on the quantity, quality, and purity of those substances. This provides the perfect foundation for a counterfeit drug market for all IPEDs. These products pose a considerable individual and public health threat, and the very wide range in proportions of fake black-market AAS puts the user in a situation of unpredictable uncertainty. Overall, 19 studies, which in total comprised 5,413 anabolic samples, met the inclusion criteria, and passed the quality appraisal from two WHO world regions that reported findings, the Americas and Europe. Qualitative and quantitative analysis according to the suggested classification of Neves , and Weber and colleagues into original, substandard or counterfeit and subclassifications with some adaptions for analysis Furthermore, we assessed the different analytical methods used to determine the quality and quantity of AAS on the black market. We used a subclassification of "counterfeit" substances to comprise "adulterated", "substituted" and "inert"; and "substandard" substances to comprise "over- and under- concentrated" (Table 3). The counterfeit drug market can affect all drugs and is estimated to be a multimillion dollar business .
