Canada will be the first nation to start printing warnings directly onto individual cigarettes in a bid to deter young people from starting smoking and encourage others to quit.
The warnings, which will be in English and French, will include phrases like "Cigarettes cause cancer" and "Poison in every puff".
The new regulations go into effect on Tuesday.
Starting next year, Canadians will begin to see the new warning labels.
By July 2024 manufacturers will have to ensure the warnings are on all king-size cigarettes sold, and by April 2025 all regular-size cigarettes and little cigars with tipping paper and tubes must include the warnings.
The phrases will appear by the filter, including warnings about harming children, damaging organs and causing impotence and leukaemia.
In May, Health Canada said the new regulations "will make it virtually impossible to avoid health warnings" on tobacco products.
A second set of six phrases is expected to be printed on cigarettes in 2026.
The move is part of Canada's effort to reduce tobacco use to less than 5% by 2035 and follows a 75-day public consultation period that was launched last year.
Canada has required the printing of warning labels on cigarette packages since 1989 and in 2000 the country adopted pictorial warning requirements for tobacco product packages.
Health Canada said it plans to expand on warnings by printing additional warning labels inside the packages themselves, and introducing a new external warning messages.
Dr Robert Schwartz, of the University of Toronto, told BBC News it was good news that Canada was "moving forward with this innovation".
"Health warnings on individual cigarettes will likely push some people who smoke to make a quit attempt and may prevent some young people from starting to smoke," he said.
He also pointed to New Zealand, which has introduced very low nicotine cigarettes, as a leader in limiting the use of tobacco.
Mr Schwartz added: "These are the kinds of measures needed if we are serious about decreasing tobacco use."
Tobacco use continues to kill 48,000 Canadians each year.
"Tobacco use continues to be one of Canada's most significant public health problems, and is the country's leading preventable cause of disease and premature death in Canada," Public Services Minister Jean-Yves Duclos has previously said.
The Canadian Cancer Society, Canada's Heart and Stroke Foundation and the Canadian Lung Association have all praised the warning labels, saying they hope the measures will deter people, especially young people, from taking up smoking in the first place.
Cigarette smoking is widely regarded as a risk factor for lung cancer, heart disease and stroke.
In Canada, the rate of smokers aged 15 years or older is around 10%, according to a national 2021 Tobacco and Nicotine survey but electronic cigarette use has been on the rise.
"Poison in every Puff"
Don't threaten me with a good time!
Joking aside, I'm fairly ambivalent about this as a smoker. I hope it helps people avoid smoking but not sure how effective these warnings are.
Former smoker. The specific medical warnings are good imo. "Poison in every puff" is a little too goofy and my inner teenager reaction is just "hell yeah" hahaha. Which is funny, but also counterproductive.
Long time ago my brand was Death cigarettes. The pack had a skull on it and a portion of the price of packet went to cancer research. I knew that smoking was bad idea but it was an excellent drug delivery system.
Though if it just means it costs the cigarette companies a bit more to produce each cigarette and makes it harder for them to divert inventory for one market to another if their predictions turn out not so good, that's still a win.
Though, now I'm suddenly wondering why cigarette company profits aren't taxed at like 90%.
Damn now that's actually a great reason, at first I thought it would be a complete waste to stop people and yeah it probably is but at least it puts more cost on those companies participating in production and distribution so that's a win in my books.
I quit smoking almost a decade ago. But I feel like if I was still smoking this would only make me want to smoke more. Watching the warnings slowly burn away would be relaxing.
They fked up
They should've printed anatomical lungs on the cigarette that showed them getting darker with soot as the cig burns
More ominous and a picture is worth a 1000 words. And some ppl dont/cant read tbf