“…For instance, human growth hormone has steadily increased in popularity, from use by competitive athletes and elite bodybuilders in the 1980s, to become easily available and commonly used within gyms around the world (Brennan, Wells, & Van Hout, 2017;Holt & Ho, 2019). Some drugs have maintained a level of use despite scant evidence of effectiveness, for example gamma hyroxybutyrate (GHB) (Takahara et al, 1977), taken to enhance the release of human growth hormone (Assael, 2007;McVeigh et al, 2020). While for other drugs, use has been transient, for instance, nalbuphine hydrochloride (Nubain©) gained popularity for a relatively short period in the 1990s based on an unfounded reputation for having anti-catabolic properties (Duchaine, 1988;Wines, Gruber, Pope, & Lukas, 1999) and is now rarely reported as being used (Begley et al, 2017;McBride, Williamson, & Petersen, 1996;McElrath & Connolly, 2006) However, while various drugs have gained popularity with those looking to enhance musculature, the AAS have remained a constant feature and the basis of drug regimens for muscular enhancement around the world (Bonnecaze, O'Connor, & Aloi, 2020;Cohen, Collins, Darkes, & Gwartney, 2007).…”