My friend says the max number anyone can take at one time is 36, is that true?
Responses (3)
7 May 2011
yes. the dose that has been known to od and death in rats is 500 mg/kg. that would be 20 pills to get 500 mg. I normally use 20-50 pills: that is 500 mg to 1250 mg. if I take to many i start to vomit it out. I have also had seizures. so, since can cause the mentioned symptoms one can od; but i have not known anyone that died from it yet. depending on tolerance you can take more then 36.I hope this helps
9 Feb 2012
Absolutely! I did so myself, accidentally. Ok so I wanted to sleep, was having psychological issues and downed a whole bottle. It took about an hour and a half but when I started to feel it it hit hard. I remember hallucinating and acting like a drunk person. My parents tell me that in the emergency room I went into seizures. This stuff is not something to play with, I was scared to take it at all for a while after that incident. I also remember the nurse putting the tube up my nose and me fighting the whole time. Then she put the charcoal in and everything came up, instantly. I still remember her face, I hit her, slapped her, kicked and screamed. I saw my dog in the hospital looking for me, I called out for her. This was a scary thing and I NEVER want to do it again.
22 Mar 2013
Bottom line, follow the label for use. I am a Critical Care Paramedic and also work in a major metro Emergency Department. Taking on a does above 300+ mg will cause different effects. People and teens intentionally OD on Benadryl taking 300-800 mg orally to get a "high". Depending on multiple variables (patients weight etc) it causes the person to see things and answer questions they were not asked. I saw this just last week in 2 male patients of 15 years old. The OD causes tachycardia (rapid heart rate), and hypertension (high blood pressure).
Take it as directed by label or MD only or results will vary.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Similar questions
Benzodiazepine Overdose - A person overdose with valium. She is given 0.2mg flumazenil IV. She?
... awakens, disoriented and agitated. Should she be given more flumazenil? Will her level of consciousness decrease? Or is it possible she didnt ...
Can you get addicted to taking Benadryl Allergy Ultra Tablets?
My doctor told me it is okay for me to take Benadryl Allergy Ultra Tablets since I came down with Shingles. My rash is gone now but the pain of PHN ...
Benadryl Allergy Sinus - what is concidered high blood pressure to NOT take benadryl D?
It states that people wil high BP shouldnt take Benadryl D... how and hight and why?
Benadryl Allergy - how fast do childrens benadryl fast melt tablets actually melt ? does it take?
... seconds or minutes ?

I would have to disagree and say no. But of course it varies for everyone. You would need about 17 bottles of 25 mg Benadryl to cause a lethal overdose, but that's assuming that by the time you got that many in you you haven't started puking them up yet. The most Benadryl I have ever taken was (a lot) and it was taken in conjunction with other medications in a suicide attempt which I obviously lived from, but I was not expected to. The most Benadryl I have taken in a non-suicide attempt is 1,200 mg. Major hallucinations and vomiting after about an hour. The next day I felt like I had been hit by a train, just like a bad hangover. Benadryl OD in lesser amount in conjunction with alcohol (hell anything in conjunction with alcohol) can produce a much greater lethal effect as resperatory depression is increased.
I started with 10 pills for rec use then worked my way up. I take 50 and have no vomiting. I can feel depressed in the morning sometimes. but that fades. now I have vomited on 36 pills of 50 mg/pill. Also I found that if I have a beer after the first hour, the ben trip stops in its tracks for me. But I am weird.