A Quebec coroner is recommending that diphenhydramine — an antihistamine and sedative generally used to sleep higher — must be higher managed in pharmacies after the overdose dying of an 18-year-old man south of Montreal in December 2023.
The younger man, whose identification is just not revealed within the report made public, died of acute diphenhydramine poisoning at his house in St-Mathias-sur-Richelieu.
On the morning of Dec. 11, 2023, the person was discovered by his mom in his mattress, unconscious and laying on his again. Toxicological evaluation discovered the person had a deadly stage of diphenhydramine in his blood.
The drug is the sedating ingredient in some over-the-counter antihistamines together with the model Benadryl, amongst others.
The coroner discovered the circumstances surrounding the dying elevate questions in regards to the uncontrolled availability of a doubtlessly deadly over-the-counter substance. He famous there’s consensus in regards to the dangers of poisoning amongst scientific our bodies, however it’s not saved behind the counter.
“I can not perceive why the sale of diphenhydramine … is just not higher managed,” coroner Vincent Denault wrote. “I can’t perceive why diphenhydramine is offered over-the-counter, particularly since Gravol, which additionally comprises diphenhydramine, isn’t accessible.”

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In a report dated from late April however launched this week, the coroner wrote the person’s dying is attributed to the acute toxicity of diphenhydramine, a central nervous system depressant which if consumed in adequate portions causes deadly respiratory despair and irregular heartbeat, which may result in deadly cardiac arrhythmias.
The coroner famous there have been beforehand used empty jars and blister packs of diphenhydramine tablets within the man’s bed room.
“Was he taking them to sleep higher? May he have taken tablets in the identical manner, however in bigger portions, in the course of the night time of December 10-11, 2023?” the coroner requested.
Denault famous it wasn’t the primary time deaths have occurred as a result of drug. The coroner has already weighed in on three earlier Quebec investigations.
There was an uptick round in 2020 after the so-called Benadryl TikTok problem on social media invited customers to devour massive portions of medicine tablets containing diphenhydramine.
“The deaths of kids have put a face to this harmful development,” Denault wrote. “The scientific literature confirms that diphenhydramine is consumed in excessive doses for its euphoric and hallucinogenic results, and that folks have used it to commit suicide.”
Denault’s advice was for the provincial workplace of professions to take steps to amend rules involving the sale of medicinal merchandise, to categorise diphenhydramine meant for oral administration in a piece that requires extra administration by pharmacists.
That administration would come with making a file, noting the sale and finishing up a pharmacological examine of the file.
Denault additionally requested the coroner’s workplace to share the report with the Collège des médecins du Québec — the province’s School of Physicians — and the Ordre des pharmaciens du Québec, the physique that oversees pharmacists within the province.
Jean-François Desgagné, president of the pharmacists’ order, stated this week the order would evaluation the coroner’s advice to reclassify the drug to evaluate the appropriateness of shifting it behind the pharmacist’s counter.
© 2025 The Canadian Press
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