While Patrick Mended was banned for usage HGH, Joshua Gilbert was sentenced to suspension for intake of furosemide

Patrick Mendes and Joshua Gilbert, top Olympic weightlifters, were banned from “Average Broz’s Gymnasium” (Las Vegas, Nevada). They tested positive for prohibited medications. Steroids were not the preparations applied by these athletes. They applied non-steroidal medications which are also banned under Code of the WADA.
Patrick Mendes tested positive for forbidden preparations in February 2012 before the United States Olympic Team Trials for Weightlifting determined who would represent the US at the 2012 Summer Olympics. He tested for HGH; as a result, he was banned.
Joshua Gilbert tested positive for the diuretic medicine furosemide at the 2012 National Weightlifting Championships. It was in March 2012.
Furosemide is a product that is used by those that take steroids in order to hide usage of steroids. Furthermore, this preparation helps athletes to lose weight in order to meet criteria of certain weight groups.  Weightlifting, boxing and wrestling are sports that divide competitors to weight classes.
HGH and furosemide are products which are banned by the International Weightlifting Federation (IWF). The anti-doping system of the IWF meets criteria of the WADA Code.
Mendes and Gilbert were trained by John Broz. Broz lived and trained with the famous Bulgarian weightlifter Antonio Krastev during his career. Krastev broke a world record snatch of 216 kg in 1987. John Broz studied the Bulgarian system of trainings and brought some methods to America. He founded own training gym in Las Vegas.
Mendes was suspended for 2 years. As for Gilbert, he was sentenced to 3-year ban.
The suspensions of these athletes are failure for “Average Broz’s Gym”. Thus, the greatest weightlifters were not allowed to represent their native country at the 2012 Summer Olympics.