MPs who voted in favour of the assisted dying bill have raised concerns about parts of it and want to see changes before giving it final approval.
Some are worried about the bill's provisions to allow doctors to raise assisted dying as an option without the terminally ill patient having asked for it first.
The proposed law would give adults with less than six months to live the right to end their life with the help of a doctor. It passed its first stage in the House of Commons on Friday with a majority of 55.
Those with concerns want to see them addressed as the bill goes through further scrutiny and rounds of voting over the coming months.