Source: Wikimedia
Benadryl can cause hallucinations.
A 24-year-old man presented to the emergency department with acute anticholinergic symptoms, hallucinations, and bizarre behavior following a large ingestion of diphenhydramine (Benadryl).
Weird. I guess Benadryl joins cold medication and Tylenol in the category of “OTC drugs that can do a quite a bit of damage.” Just goes to show that OTC ≠ safe.
A couple of snippets from Harvard’s School of Public Health:
