Asked later whether he was concerned the helicopters might be used against Filipino citizens, Canadian Prime Minister Justin Trudeau replied: "Absolutely".
"Do not buy any more from Canada and the U.S. because there is always a condition attached", he said, referring to defence materiel.
"I am directing the Armed Forces of the Philippines (AFP) not to buy anymore (military equipment) from Canada or from the United States because there is always a condition attached", Duterte said in a news conference in Davao City.
"We have very clear rules around who and what we can sell either arms of potential military vehicles like helicopters and controls-on what they intend to be used for and checks in how they are used", Trudeau said.
International Trade Minister Francois-Philippe Champagne is ordering a review of the planned sale of 16 412EPI helicopters to the Philippine military amid concerns about the country's human rights record.
The Liberal government had defended the deal, which is being facilitated by the Canadian Commercial Corp., arguing the Montreal-built Bell helicopters would be used during search-and-rescue missions and disaster relief. "And we will obviously review the facts and take the right decision", Champagne told reporters according to another Reuters report.
They accuse President Rodrigo Duterte of human rights abuses and carrying out unlawful killings amid his anti-drug campaign.
He added that the Canadian government will make sure any deal entered into by the their government are "abiding by the rules and expectations that are not just values, but actual rules that the Canadian government has to follow".
The military stressed they were "utility helicopters, not attack helicopters".
Mr Trudeau told journalists that he spoke with the Mr Duterte about concerns related to extrajudicial killings linked to the president's war on drugs.
"If they don't want to sell, we may consider the prospect of procuring them from other sources", Presidential Spokesperson Harry Roque, Jr. said on Thursday.
The Canadian PM said Duterte has been receptive to comments regarding his government's crackdown on drug dealers that had claimed several lives.
The Philippine government says police only shot the suspects in self-defence and rejects human rights monitors' description of the crackdown as a crime against humanity.