That's super unusual, as clemastine is another first generation antihistamine that's also anticholinergic. Other anticholinergic antihistamines have been shown

That's super unusual, as clemastine is another first generation antihistamine that's also anticholinergic. Other anticholinergic antihistamines have been shown to lead to increased dementia effects in users. https://en.wikipedia.org/wiki/H1_antagonist https://en.wikipedia.org/wiki/H1_antagonist