UK Anti-Doping (UKAD) today confirmed that Welsh rugby union player, Ben Murphy, has been suspended from all sport for six months following an anti-doping rule violation.
Murphy (19) who was registered to Merthyr RFC, tested positive for the presence of 1, 3-dimethylbutylamine (DMBA), following an in-competition test on 7 March 2015. The test took place after a match against Bridgend Athletic RFC in the SWALEC Championship.
The substance was believed to have been in a supplement which Murphy had been using. As a result, Murphy is banned from all sport from 7 March 2015 to midnight on 6 September 2015.
http://www.ukad.org.uk/news/article/welsh-rugby-union-player-ben-murphy-banned-for-six-months/
Full decision:
http://www.ukad.org.uk/anti-doping-rule-violations/download-decision/a/6853
I have some sympathy with the player in this case, in that he did take some steps to try to ensure the supplement he was taking did not contain a prohibited substance, but there is a lot of evidence that many, many supplements do not contain only what is on the label.
(There is also the risk of deliberate doping of a container of supplement, and using that as 'evidence' to get a lighter ban if ever caught)
I personally feel 6 months is a little light, but the 2015 code does make this sort of ban more likely than the previous code.