The Prime Minister is facing pressure from more than 9,000 doctors to urgently re-consider repeals to the Smokefree Amendment Act.

Some of New Zealand's leading health organisations have banded together to issue a formal request.

It asks that, rather than being scrapped in the first 100 days as planned, a new bill is sent to the health select committee.

Council of Medical Colleges chair Samantha Murton says there are parts of the law that should remain.

"There's a lot of evidence around the measures that are really helpful for reducing cigarette smoking and getting hooked on it, and we need to make sure we're focused on those."

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