A warning to the more than 530,000 arthritis sufferers in New Zealand, not to suddenly stop taking their anti-inflamatory medication.
A drug, sold as Voltaren here, has raised concerns about heart disease in Britain.
Sandra Kirby of Arthritis New Zealand says tens of thousands of people rely on medication to be able to move.
"Links between heart disease and potential stroke, and these kinds of painkillers, have been quite well-documented."
Sandra Kirby says patients should discuss any concerns with their doctor.