NSW Premier Gladys Berejiklian this week announced a cross-party parliamentary committee will consult with police and health, community, entertainment and music groups as part of a review into the city's night-time economy.

"Now is the time ... to take stock and examine whether any further changes should be made," the premier told parliament on Wednesday.

But the suggestion the lockout laws in the CBD and Kings Cross could be relaxed has outraged the state's peak doctors' body, which argues they've successfully reduced alcohol-related injuries.

"To wind them back now would be foolish," Australian Medical Association NSW president Dr Kean-Seng Lim said in a statement on Thursday.

"Time and time again people get complacent when health measures start to work well.

"We've seen that with vaccines and we're also seeing that with the drop in use of condoms."

The AMA says since the lockout laws were introduced the number of patients presenting with fractures at St Vincent's Hospital has dropped by 60 per cent.

The Last Drinks campaign - which represents police and ambulance officers, nurses and doctors - estimates about 1800 assaults have not happened as a result of the lockout laws.

Shooters, Fishers and Farmers Party leader Robert Borsak on Thursday said he intends to re-introduce a bill to scrap the lockout laws without waiting for the committee's review.

"We just need to get on with changing the laws now," he said in a statement.

"Sydney is now basically Canberra with bad traffic. Gladys and the killjoys have killed nightlife in Sydney. It's now dead after dark and it doesn't feel like a vibrant big city".

The lockout laws - introduced in 2014 after two high-profile one-punch deaths - mean venues in Sydney's CBD and Kings Cross shut their doors at 1.30am or 2am, while last drinks are served at 3am or 3.30am, with the later hours applying if there's live entertainment.

Australian Associated Press