https://www.medscape.com/viewarticle/894534?nlid=121554_4502&src=wnl_dne_180329_mscpedit&uac=27343DV&impID=1593604&faf=1

Outcome of this Scandanavian study is clear: over 75 year old patients need to be very very slowly switched, if at all, on their antidepressants.
Plus, use of anxiety and sleep medications at the same time increased risk even further!
Caution.