OTC Overdose Challenges

OTC-overdose 'trips' — most notoriously the Benadryl challenge — encourage teens to take many times the recommended dose of a legal pharmacy drug for hallucinations or a 'trip.' The drugs have lethal thresholds far closer than they appear. Diphenhydramine (Benadryl) overdose causes seizures, cardiac arrhythmia, and death. Acetaminophen (Tylenol) overdose causes irreversible liver failure over 24–72 hours.

TikTok originally; the videos are typically labeled as 'hallucination trips' or 'sleeping medicine experiences,' avoiding direct OTC-overdose framing to evade moderation.

Recurrent since 2020. The FDA issued specific public warnings about the Benadryl challenge in 2020 and 2022 after deaths and hospitalizations in 13–15 year olds.

• Acetaminophen poisoning can be silent for 24–48 hours, with liver failure appearing too late to reverse. An overdose at noon Monday can kill on Wednesday.
• Diphenhydramine overdose can cause seizures and cardiac arrest at as little as five times the labeled dose.
• Other involved drugs include dextromethorphan (in NyQuil and Robitussin) and ibuprofen — all in the kitchen drug drawer.

• Cardiac arrhythmia, seizures, hyperthermia from anticholinergic overdoses (Benadryl, Dramamine).
• Irreversible liver failure from acetaminophen — death rate without transplant is significant.
• Co-ingestion with alcohol or other CNS depressants multiplies the risk substantially.

• Lock or remove bulk OTC medications from accessible cabinets. The same way prescription opioids are locked, treat the OTC section.
• If overdose suspected: call Poison Control immediately (1-800-222-1222) — they'll triage to home monitoring or ER referral within minutes.
• Acetaminophen-specific: if any chance of overdose, ER within 8 hours can prevent liver failure with N-acetylcysteine.

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