Blood diseases specialist Humphrey Pullon said Soliris was extremely effective as it transformed patients' lives. It prevented or reduced complications and prolonged survival.
Ms Murphy, from Dunedin, said she began suffering PNH some years ago. It laid her low with regular chest spasms and severe stomach pains.
After she suffered a blood clot, brain bleed, seizure and left-side paralysis two years ago, a Dunedin Hospital doctor managed to get her onto infusions of Soliris. "I haven't had a stomach ache since being on it. I would be dead without it. I've basically resumed a normal life with Soliris. I consider the treatment a miracle.
"I think it's a crime that there are other people at risk of dying and that they cannot get on this medicine."
"How can Pharmac deny terminally ill people this treatment?"
Last February, a Pharmac committee opposed Alexion's application for funding of Soliris. It was concerned by the high price and questioned some of the evidence of its benefits.
But the committee also suggested seeking an opinion from the agency's haematology group. Its minutes - still under wraps - will go to the committee's meeting next month.
A support group for patients with PNH said Pharmac was taking too long to decide, has begun a lobbying campaign, whose costs are met in part by Alexion.
The group's founder, Auckland artist Daniel Webby, 32 - who almost died from PNH complications - said the funding process did not recognise the rights of rare-disease sufferers.
"They have got a figure they say a life is worth and if it's more than that figure then they deny access.
"They need to recognise that for rare diseases, [drug] development costs are higher per patient. They need to put that into their budget and make sure people get ... life-saving treatments when they are available."
The disease
* Extremely rare blood and immune system disorder
* Called PNH (paroxysmal nocturnal haemoglobinuria)
* Sufferers lack a protective protein on red blood cells
* Red blood cell breakdown happens at a greater rate than normal
* Leads to anaemia, severe stomach pain and potentially fatal blood clots, stroke, organ failure.
The drug
* Soliris, also called eculizumab
* Costs around $500,000 a year
* Needed life-long.