Origin
The #BenadrylChallenge went viral on TikTok in August-September 2020, encouraging teens to take excessive doses of the over-the-counter antihistamine diphenhydramine (Benadryl) to induce hallucinations. The dangerous trend led to hospitalizations and at least one confirmed death.
The Challenge
Premise:
- Consume 12-15+ Benadryl tablets (25mg each = 300-375mg+)
- Film reactions (drowsiness, hallucinations, disorientation)
- Share videos on TikTok
- Normal therapeutic dose: 25-50mg
Medical Dangers
Diphenhydramine overdose causes:
- Hallucinations (visual/auditory)
- Seizures
- Heart arrhythmias (irregular heartbeat)
- Respiratory depression
- Coma
- Death (via cardiac arrest or respiratory failure)
American Association of Poison Control Centers:
- 163% increase in teen diphenhydramine exposures (Q2 2020)
- Many cases required hospitalization
Tragic Death (September 2020)
Chloe Marie Phillips (Oklahoma):
- 15-year-old girl
- Died September 2020 after Benadryl overdose
- Family confirmed TikTok challenge participation
- Cardiac arrest caused by diphenhydramine toxicity
Her death prompted urgent warnings from health officials nationwide.
Platform Response
TikTok (September 2020):
- Removed #BenadrylChallenge videos
- Blocked search results
- Added warning screens for related queries
- Redirected to crisis resources
Statement: “We prohibit and remove content that encourages, promotes, or glorifies dangerous behaviors that might lead to injury.”
FDA Warning (September 24, 2020)
Official FDA statement:
“Taking higher than recommended doses of the common over-the-counter (OTC) allergy medicine diphenhydramine (Benadryl) can lead to serious heart problems, seizures, coma, or even death.”
Rare for FDA to issue public warnings about specific social media trends.
Medical Community Response
Emergency physicians warned:
- Benadryl abuse not new (DPH “trips” known in drug communities)
- TikTok made dangerous practice accessible to younger teens
- Over-the-counter ≠ safe in high doses
- Permanent organ damage possible even if survival
Parental Awareness
Health officials urged parents to:
- Secure medications (even OTC drugs)
- Monitor teens’ social media
- Discuss peer pressure and viral trends
- Educate about OTC drug dangers
Similar Dangerous Challenges
Benadryl joined a pattern:
- Tide Pod Challenge (2018): Ingesting laundry detergent
- Nutmeg Challenge (2017): High-dose nutmeg hallucinations
- Cinnamon Challenge (2012): Aspiration pneumonia risk
- Fire Challenge (2014): Setting oneself on fire
Why Teens Participated
Motivations:
- Peer pressure / fitting in
- Curiosity about hallucinogens (legal accessibility)
- Viral clout (views, likes, shares)
- Underestimating OTC drug risks
- Brain development (risk assessment not fully mature)
Long-Term Health Risks
Even non-fatal overdoses can cause:
- Kidney damage
- Liver damage
- Cognitive impairment
- Heart rhythm disorders
- Neurological damage
TikTok Accountability Debate
The challenge reignited discussions:
- Should platforms pre-moderate dangerous content?
- Is removing after-the-fact sufficient?
- How to balance free expression vs safety?
- Parental responsibility vs platform liability
Legacy
The Benadryl Challenge highlighted:
- OTC drug dangers: Legal ≠ safe
- Social media health risks: Platforms spreading dangerous trends to vulnerable demographics
- Algorithm responsibility: Recommendation engines amplifying harmful content
- Tragedy-driven moderation: Reactive policies after deaths
Chloe Phillips’ death became a rallying cry for stronger platform safety measures.
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