"It should still be a conscience vote but it should be based on discussion.
"There is no point hiding from death, you can't make it go away and it is time the Government did its job and led the conversation."
His comments come after New Zealand coroner Ian Smith released his findings into the death of an elderly woman who took her own life .
The case has reignited the euthanasia argument.
In his report, Smith called for Parliament to confront the issue of euthanasia: "Once again this death raises the vexed issue of euthanasia and, as I have recorded in past cases, this process simply will not go away, and it will be necessary for Parliament to address this matter yet again."
The call has angered anti-euthanasia groups, including Right To Life, who issued a press release saying it "is concerning that a coroner should be advocating a culture of death".
"Right to Life believes that it was reprehensible and a deadly threat to the common good for the Wellington coroner Ian Smith to request that parliament again consider legislation to allow for euthanasia," spokesman Ken Orr said.
Richard Thurlow, chairman of Waipuna Hospice also spoke out, saying voluntary euthanasia was not the answer.
He said many people were unaware of advances in palliative care and said more funding in the area was needed, not the legalisation of voluntary euthanasia.
"The level of palliative care in the last seven years alone has developed hugely and it will continue to improve with more funding," he said.
"Yes, we do receive patients whose hope is gone, saying that they want to end it.
"We respect people's opinions but we do not support that [voluntary euthanasia] as an option now or in the future.
"I work with a great nurse who has a saying: 'Don't spend the rest of your life dying, spend the rest of your life living'.
"Yes, it is tough at times but we are there for you, there are things we can do to make your pain more manageable."
Mr Thurlow said euthanasia was a "slippery slope to go down" with many blurred boundaries.
"You have to ask: where does it all end?" he said.
"We find many of the people who were talking about wanting to end it will turn around down the track and say they can't believe they were even considering it, it is all about where you are at, at which time.
"We are talking about a very final decision to make."
Mr Vize said palliative care and voluntary euthanasia should not be seen as mutually exclusive.
"My wife had great care in the hospice she was in but she would have liked to avoid the immense pain she was in at the end.
"The latest polls showed 12 per cent of the population are against voluntary euthanasia, so our current law is based around what 12 per cent of the population wants, never mind the views of the majority.
"In other words, my wife died in a lot of pain because of the views of 12 per cent of the population.
"That does not seem right to me. I find people who are against it [voluntary euthanasia] deal in FUD - fear, uncertainty and doubt, not facts.
"I think it is time New Zealand had a robust conversation about this and we had the facts."