David Seymour's End of Life Choice Bill is a step closer to becoming law.
Thirty-one changes have been confirmed, with the House voting 69 to 51 in favour.
New safeguards were put in place after two hours of debate. Doctors will not be allowed to be the first to mention assisted dying to terminally ill patients - it has to be the patient who suggests it themselves.
Health professionals who oppose euthanasia will also be protected from any employment repercussions if they object. They will still be required to tell patients how they can move forward with the process.
Patients will now be able to pause their progress towards euthanasia by six months without having to start the whole process again.
- MPs debate who should be eligible under proposed euthanasia law
- Act leader David Seymour praises Winston Peters' cooperation ahead of potential euthanasia Bill changes
- Newshub poll: Most New Zealanders support euthanasia
"Evidence from offshore is that there is a palliative effect simply from having the choice. Once people know that they have the choice about how and when they die, if they want it, then that actually has a huge positive effect on their wellbeing," Seymour said.
A number of other amendments to make the bill more restrictive were turned down, while tweaks to the process of how euthanasia would work were put in.
A proposal from National MP Chris Penk to have a panel determine whether prospective euthanasia candidates are being pressured to end their lives was voted down.
The Bill will face its third day of debate next month.