A Quebec parent is warning the public after she says her step-son was hospitalized after eating chocolate he received on Halloween that contained cannabis. Rebeka Lefebvre said she took four-year-old Mylan to the hospital last Thursday after he said the chocolate he ate tasted weird and he was drooling. The nurse at the hospital said he seemed to be OK and discharged them, but as they were leaving, Milan fell to the floor, started crying, and his heart rate shot up really fast, she said. She said a urine test conducted at the hospital detected traces of THC, the psychoactive chemical that produces the “high” when consuming cannabis. “I think it’s appalling that people are capable of doing things like that. It’s not supposed to happen,” Lefebvre said in an interview on Sunday. “At that moment, we were filled with questions, anxiety, and stress, and fear. There were so many emotions overwhelming us at the sight of our child like that.” She said the Sûreté du Québec are now involved. An SQ spokesperson told CTV News that an investigation is underway. Lefebvre says she checked Mylan’s Halloween candy to make sure there wasn’t anything harmful and, to her, nothing looked out of the ordinary. Since the ordeal, Lefebvre has issued a warning on social media to be vigilant with Halloween candy. She said she has also been the target of negative feedback from others who are blaming them for the situation. “As parents, I find it really sad to be going through this situation because we’re two parents who don’t use drugs and don’t drink alcohol,” she said. Dr. Christopher Labos, a cardiologist at McGill University Health Centre, said if a child consumes cannabis, it should be taken very seriously. Parents should consult a medical professional or Quebec poison control centre, which can be reached 24 hours a day, seven days a week at 1-800-463-5060. “At the extreme, for a young child that gets a very, very high dose they can actually develop seizures, lapse into a coma, and sometimes even die,” he said. Mylan is recovering at home now. “I certainly wouldn’t wish this kind of situation on any other family,” said his step-mother. With files from CTV News’ Lauren Fernandez