Teen dies after dangerous Benadryl challenge’ left her ‘brain dead’ as heartbroken father issues warning…See more

The teenager, identified as Leah Presson, reportedly became unresponsive after consuming a large amount of diphenhydramine, the active ingredient in the over-the-counter allergy medication Benadryl.

The incident is believed to be linked to the social media trend that encourages young people to take excessive doses of the drug in order to experience hallucinations.

After participating in the trend, Leah suffered seizures and cardiac arrest that reportedly left her with “no brain activity.”