Dangerous online trends have become a major public health problem.

A dangerous social media trend that started in 2020 has persisted into 2026, with heartbreaking consequences.

In May and June 2026, four American teens died participating in the “Benadryl Challenge.” This trend encourages adolescents and young adults to consume excessive amounts of diphenhydramine – the active ingredient in Benadryl – to induce hallucinations.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.

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