Mr Davies has already served six months of his ban whilst awaiting the conclusion of the case against him.
The panel also gave its reasons for dismissing the case against three other players who had been charged with doping offences. The panel concluded that, whilst the three players knew of the request to provide a sample, they were not present when the other players made a collective decision in the changing room that they would not submit to a test.
Nineteen of the 22 players charged with the offence of failing to submit a doping control test have now been suspended for 18 months with effect from the 29th July, 2003. The former secretary of Penygraig RFC was suspended for three years from the same date. He has appealed against this sentence.
It is not known whether the players intend to pursue an appeal.
David Moffett, the WRU Group Chief Executive, said:- "The disciplinary proceedings against Penygraig players and officials have been a long drawn-out process. The WRU is pleased to note that almost all of the players charged with doping offences have admitted the offence or have been found guilty.
"As a Union we will continue to enforce our anti-doping regulations. Club officials and players are reminded that a doping offence is committed not only when a player is found to have taken a prohibited substance but also when he fails or refuses to provide a sample after being requested to do so. Club officials who obstruct Doping Control Officers may also be committing a doping offence."