diphenhydramine hcl is fun. It's actually somewhat trippy. No hallucinations but it's a great sleep aid. I only need 25 mgs to get me off .. one capsule. But 50 to 100. 100 is a little too much imo because you'll just pass out. 150 you'll be out in about an hour. then again .. depends on your weight and tolerance. I used to be able to take a good bit back in the day, but time and experiences show you you don't need alot most of the time.
all joking aside ... i take a good bit of xanax everyday for anxiety but if i take one tylenol PM or benedryl it fucks me up than taking a whole daily dose of xanax at once.
that's just me though...
but diphenhydramine is a good sleep aid or allergy reducer. But it causes a hangover effect. also .... there is a reason it's non addictive. It has some shitty side effects that after a while, you'd rather not deal with.