Get Virtual Care
For Businesses
About Us
A member asked:
How much diphenhydramine (benadryl) is fatal for a 150 pound person?
A doctor has provided 1 answer
Don't try in human: The 50% lethal dose of Diphenhydramine in rats is in the scale of 500mg/kg. So about 700 capsules of 50 mg Benadryl (diphenhydramine) for a 150 pound "rat"?
Answered 6/25/2014
5.7k views
Thank
Related Questions
A member asked:
My baby is 8 months old and weighs 23 pounds(big boy) a dr. At urgent care told me to give him Benadryl (diphenhydramine) .5ml, he is not my normal dr. , is this ok?
3 doctors weighed in across 2 answers
A member asked:
Can my son take Benadryl (diphenhydramine) right now while taking Singulair? He takes Zyrtec also but we're out & hes suffering big time!! He's 13, 120 pounds.
3 doctors weighed in across 2 answers
A member asked:
Need to know proper dosage of children's Benadryl (diphenhydramine) for my daughter who will be 3 in july. She is 34 pounds. She has watery eyes and is sneezing! help?
5 doctors weighed in across 2 answers
A member asked:
Can I give my 2 year old daughter malox and Benadryl (diphenhydramine) mixed for mouth sores cause of hand foot and mouth? She weighs 29 pounds.
4 doctors weighed in across 3 answers
A member asked:
What is the lethal dose of diphenhydramine for a 110 pound woman?
A doctor has provided 1 answer
People also searched for:
10 year old took 25 mg of Benadryl (diphenhydramine) then 1-2 hours later took 1 mg of Ativan prescribed for anxiety. could this interaction be fatal?
How much Benadryl (diphenhydramine) should I give my 4 year old daughter who weigh 29 pounds?
Can you give a 15-year-old Zyrtec and Benadryl (diphenhydramine) D at the same time... He weighs hundred pounds?
My son is 9 months old roughly between 17-19 pounds and he had 1.25ml of fever reducer about 3 hours ago, is it ok to give him Benadryl (diphenhydramine)?
I took one 25mg Benadryl (diphenhydramine) allergy on monday it's now friday and I still feel out of it is this normal or did I overdose? I'm 19, 98 pounds 5'4
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
