[bryceacc]

that seems to be associated with benadryl:

https://www.health.harvard.edu/blog/common-anticholinergic-d...

which is sometimes used for it's drowsy effect. cetirizine/loratidine are non-drowsy and I don't see any association known with dementia

[eindiran]

Yeah, Benadryl is a weird drug. Look at its interactions with various receptor sites in humans: https://en.wikipedia.org/wiki/Diphenhydramine#Pharmacology

[Ironlikebike]

Benadryl does nothing to me except kill my deep and REM sleep and leave me "sleeping" but conscious. I'm exhausted the next day. I only take cetrizine.

[bryceacc]

agreed, any drowsy things seem to turn off weird parts of my brain but im left feeling like an awake zombie