THE No campaign against the Croke Park II deal has received another boost.
The Irish Medical Organisation, which represents 3,500 public service doctors, has unanimously recommended that members reject the deal.
Director for Industrial Relations Steve Tweed said the union's opposition is based on the risk it says the proposals pose to patient safety.
"These proposals are designed to force doctors in public hospitals to work longer hours for less pay," Mr Tweed said.
"That poses a real danger to the lives of the patients those doctors have to treat and to the health and wellbeing of the doctors themselves."
The IMO is the seventh union to urge members to reject the deal. However, it holds only 2pc of the total union vote.
A verdict by SIPTU, which has 25pc of the vote, will be critical next week as unions prepare to ballot members.
Meanwhile, the four unions who walked out of talks on the deal will launch a No vote campaign in Dublin today.