A 15-year-old girl from Oklahoma City is in a state of brain death after participating in the Benadryl challenge, which involves ingesting large doses of diphenhydramine.

Leah Presson, a 15-year-old teenager from Oklahoma City, has been declared brain dead after participating in the viral Benadryl challenge on TikTok, which encourages the consumption of massive doses of diphenhydramine. The teenager went into cardiac arrest and is hospitalized in an intensive care unit. Diphenhydramine, an active ingredient in allergy and sleep medications, can cause severe adverse effects, including heart problems, seizures, and even death when consumed in large quantities. Dr. Ryan Brown emphasized that excessive use of this substance can lead to fatal cardiac arrhythmias and brain death due to lack of oxygen to the brain. The organization America's Poison Centers has reported an alarming increase in cases of diphenhydramine abuse among teenagers, with three recently confirmed deaths. This situation highlights the dangers of viral challenges on social media and their devastating impact on youth.