President Donald Trump has been hyping the antimalarial drug chloroquine as a treatment for COVID-19 for weeks, and it seems that Health Canada is finally cracking down on Trump's dangerous message.

In March, Trump praised chloroquine and azithromycin as possible cures for COVID-19, calling the combo a potential "game changer" in the history of medicine.

After Trump's tweet, prescriptions of chloroquine and hydroxychloroquine jumped by 46 times the average in the U.S., and a man in Arizona died after taking chloroquine to self-medicate for COVID-19.

HYDROXYCHLOROQUINE & AZITHROMYCIN, taken together, have a real chance to be one of the biggest game changers in the history of medicine. The FDA has moved mountains - Thank You! Hopefully they will BOTH (H works better with A, International Journal of Antimicrobial Agents).....

— Donald J. Trump (@realDonaldTrump) March 21, 2020

Now, Health Canada says that it's "concerned" by reports of Canadians buying and using the chloroquine and hydroxychloroquine to prevent or treat COVID-19.

On Sunday, the agency released a statement warning Canadians not to take the antimalarial drugs, since they can have "serious side effects."

Chloroquine and hydroxychloroquine can have serious side effects. These drugs should only be used under the supervision of a physician: https://t.co/ohNj1mqd8r #medsafety

— Health Canada and PHAC (@GovCanHealth) April 26, 2020

Those side effects include liver or kidney problems, low blood sugar (hypoglycemia) and nervous system problems such as dizziness, fainting, or seizures.

Sadly, this isn't the first time that officials have had to warn Canadians not to engage in life-threatening activities as a result of President Trump's remarks; on Friday, Winnipeg Mayor Brian Bowman was forced to urge Canadians not to drink bleach.

And naturally, Canadians are getting fed up with people following Trump's advice.

I’m SO tired of @realDonaldTrump ‘trickle down’ bullshit to the rest of the world! 🤐

It’s SO sad that #Canada has to recognize what he says & has to warn people NOT to do STUPID things. #COVIDIOT

Stop listening to him & rely on @GovCanHealth #TeamCanada 🇨🇦#COVID19Canada

— ➰ Deborah 🇨🇦 (@deborah_osborne) April 26, 2020

Health Canada has approved the use of chloroquine in certain drug trials, but the drug can be lethal if taken improperly.

So, please, Canada — don't take either chloroquine and hydroxychloroquine unless directed to do so by a doctor.

The things people have to be told. 🤨

— Vanillabn (@Vanillabn) April 26, 2020

The FDA has also cautioned against the use of chloroquine and hydroxychloroquine outside of a hospital setting, writing that the drugs are authorized "only in hospitalized patients under careful heart monitoring."