Somewhat preliminary research shows a strong correlation between
anti cholinergic drugs (such as Benadryl and Amitriptylene) and dementia in older adults (the
study actually looked at people 65+).
It doesn’t seem like these drugs would
affect younger people long term, but it’s probably something to be aware
of. With any luck, the scientific community will nail this down better
with more detailed and comprehensive follow-up studies.
Here are a few references:
