Health Canada is warning people that unregistered dichlorvos insecticides such as "Sniper 1000 EC DDVP", "Lava 100% EC" and "NOPEST" are not authorized in Canada. These products contain dichlorvos, also known as DDVP, at levels that pose a significant risk to human health. Anyone who sees these products advertised on social media should be aware that they are not authorized by Health Canada and should not be purchased or used . Symptoms of exposure to the chemical in these products may include, but are not limited to: sweating, nausea, dizziness and headache, which may progress to weakness, vomiting, diarrhea, tremors and more. Serious symptoms such as convulsions or loss of consciousness are also possible. It is prohibited under the Pest Control Products Act (PCPA) to possess, import, sell or use unauthorized insecticides in Canada.