A public meeting in Douglas last night (Monday) called on the Manx government to seek a deferral of the ending of the reciprocal health agreement.
The meeting attracted around 100 people, keen to show their anger at the Manx government's failure to save the agreement - or broker a new one with the UK.
With just over three weeks before the agreement is due to be scrapped, concerns about a new era of private medical insurance are acute.
The resolution passed last night calls on the government to set up a universal medical insurance scheme for Manx people, funded by a travel levy.
Onchan MHK Peter Karran has already won approval to introduce a private member's bill on those lines.
The public were urged by MHKs and campaigners, to demonstrate their anger in a show of ''people power' at Tynwald next week, when a motion calling for the deferral, will be tabled by Michael MHK David Cannan.
Roger Tomlinson from the Positive Action Group hopes the public gallery will be full to bursting.
Steam Packet praises passengers and crew following 'significantly rougher' than normal crossing
Bus Vannin invests in six new double-deckers
MiCard alternatives 'must be better than what we already have'
Last chance for central residents to respond to 20mph consultation
Spitfire passenger flights to launch from Ronaldsway