Standard Tylenol is paracetamol (aka acetaminophen)... But the article here is talking about Tylenol PM, which is a different formulation. From Drugs.com:
> What is Tylenol PM (acetaminophen and diphenhydramine)? Acetaminophen is a pain reliever and a fever reducer. Diphenhydramine is an antihistamine that reduces the natural chemical histamine in the body.
It's explicitly the anticholinergic diphenhydramine that's being looked at in things like Tylenol PM. Standard paracetamol isn't being questioned, I don't think.
> What is Tylenol PM (acetaminophen and diphenhydramine)? Acetaminophen is a pain reliever and a fever reducer. Diphenhydramine is an antihistamine that reduces the natural chemical histamine in the body.
It's explicitly the anticholinergic diphenhydramine that's being looked at in things like Tylenol PM. Standard paracetamol isn't being questioned, I don't think.