Back during early covid I use to take high DPH doses nearly every day for a year and a half (don't remember how much but I would usually go through 5 or 6 packs daily of store brand benadryl) with the intention of killing myself, eventually moved on to using DXM from delysm(usually 2 or 3 bottles a day) in combo with DPH. Nearly ended up in the hospital a few times, probably damaged my liver, and gave me schizophrenia, overall do not reccomended