DPH is an abbreviation for the chemical "Diphenhydramine" (dye-fen-hye'-dra-meen). It is the active ingredient in many over the counter sleep aids including Unisom, Nytol, Tylenol PM (combined with acetaminophen) and in many generic store brand remedies. It is also the active ingredient in Benadryl and is very closely related to the chemical Dimenhydrinate which is the active ingredient in Dramamine.
Diphenhydramine is classified as an antihistamine, antiemetic, sedative, and hypnotic. It is also an anticholinergic deliriant in high doses ( 150-800 mg's). Some people consider it recreational in these high doses but the uncomfortability of the high keeps it's abuse potential to a minimum. DPH is also used recreationally in lower doses (25-100mg's) in combination with opiates and benzodiazepines for it's potentiation abilities.
Last night I railed an OC 80 and took 75 mg's of DPH. Man I was noddin' hard!
by PsychoActivist November 2, 2008
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DPH (diphenhydramine) is the chemical found in benadryl (25 mg’s per pill) is used to treat allergies. it also is recreationally used at doses of (150 mg’s to 1 gram)
there are three levels to it
level one (150 - 200 mg’s) will slightly enhance music, make you feel heavy and will make masturbation much more enjoyable, witch is why it known as the fap dose. but if you use it for that Purpose you could get erectile dysfunction (soft pepe).

level 2 (350 - 500 mg’s) you will start actually Hallucinating, the most common one is spider’s. other sights are objects that are not there, full on conversation’s with people that can randomly end in the disappearing, and other disturbing things. it also temporarily shrinks you penis, which personally freaked me out (it will go back to its normal size). your mouth will be very dry and you could also have brain damage.

level 3 (500 mg’s - 1.2 grams) hallucinations are more belivable and you will be in a delirious state. think of it as if you mixed acid with pcp, you should not do this alone its good to have a trip sitter, you could get seizures or even die from a dose this high depending on you weight, sex, or tolerance.

this was a tiktok trend that resulted in a 12 year old girls over dose.
so in conclusion DPH is not worth it to get high off of it, and it can lead to addiction and a mountain of damage to your brain and body.
by jimmybob420 March 13, 2022
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DPH - Dirty Pirate Hooker - can be used in various ways to insult your friends/family/co-workers/etc.
by dikon August 2, 2007
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Drinks per hour. A term used by alcoholics far and wide to assess there rate of smashedness
My therapist asked me how much I was drinking, I said 7 DPH.

She was a addictions councillor for 10 years and never heard that term

#newkindofdrunk
by BigRigWilly April 30, 2018
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The initials of a legendary college student from years ago. While these stories have only but rumored to be myths many believe a kid with these initials actually existed. It is rumored that he had a 26 beer pregame before going to a party. He can supposedly sober up in 30 minutes even if he is blackout. His weed tolerance got so high he needed to hit the gravity bong 4 times before class just to have a buzz. He has never experienced a hangover. He had a 13 beer alone sunday funday including double and triple funnels, one of the most aggresive lone drinks known to this day. Not once has he lost a chugging event. DPH is known to be one of the hardest partiers in the history of college.
"Yo, I hear DPH is coming to our party tonight" "Holy shit, we are going to be fucking legends"

"Omg DPH is soo hot, I hope he picks me to fuck tonight"
by the trooth August 2, 2012
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damage per hit; Used to indicate power and efficiency of a weapon.
OMFG he got a higher dph with his pansy ass dagger than my rain of fire!!!!!11111
by phatrice April 18, 2006
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DPH is an acronym for Dollars Per Hump. This refers to the amount of cash a male expends on average per sexual encounter with a female. For instance, if a male were to spend a total of $100 on 4 dates with a girl after which he had sex with her once each time, his DPH would be $25. It is widely believed that the lower a male's DPH, the more efficient he is in procuring sex. However, it should be taken into consideration that more attractive females may command and require a higher DPH based on their ability to pursue alternative and more plentiful sources of income should they so desire.
We've only been out twice and both times we grabbed fast food so my DPH is looking pretty good.
by DukeMPG August 1, 2008
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