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benadryl maximum strength medication

A 23-year-old male asked:
Dr. Brandon Maples
A Verified Doctor answered
A US doctor answered Learn more
50 mg total: You can take a total of 50 mg up to every 4 hours. I've never heard of extra strength Benadryl (diphenhydramine) (they do make a 50 mg tablet, but i' ... Read More
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A female asked:
Dr. Patrick Connerly
A Verified Doctor answered
A US doctor answered Learn more
Yes: It mildly slows the breakdown of the benadryl. Just wait a few hours longer than usual before taking another
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A 44-year-old member asked:
Dr. Steven Machtinger
44 years experience Allergy and Immunology
Avoid these: Older antihistamines like Benadryl (diphenhydramine) interact with many drugs. Don't mix it with alcohol, sleeping pills, sedatives, antidepressants, ... Read More
Dr. James Ferguson
46 years experience Pediatrics
Depends on situation: It works ok with many other medications but can increase the sedative effect of some. Either clear the combo with your doc or try it when you don't pl ... Read More
A 48-year-old female asked:
Dr. Katharine Cox
45 years experience Pediatric Emergency Medicine
Benadryl (diphenhydramine): 50mg is the recommended dose but adults can take 400mg in 24 hours. Take 50mg 30 minutes before bedtime and if not effective by 30 minutes repeat the ... Read More
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A 39-year-old male asked:
Dr. Richard Williams
18 years experience Pharmacy
Possibly : Benadryl (diphenhydramine) is an antihistmaine. If your asthma trigger is allergic, then it would be helpful. However side effects-sleepiness, dry nas ... Read More
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A 41-year-old female asked:
Dr. Louis Esquivel
35 years experience Holistic Medicine
NO: Using chlorpheniramine (the antihistamine in corricidin) together with Diphenhydramine (benadryl( may increase side effects such as drowsiness, blur ... Read More
A 33-year-old member asked:
Dr. Anthony Rooklin
49 years experience Allergy and Immunology
Yes: The limiting factor as to how much antihistamine one can take is generally what the side-effects are. If it makes you too sleepy when combined with o ... Read More
A 43-year-old member asked:
Dr. Michael Summers
23 years experience Sleep Medicine
Very unlikely: Unless you are covering a large area for an extended period of time or areas with breaks in the skin, it's highly unlikely this would be absorbed syst ... Read More
A 26-year-old female asked:
Dr. Al Hegab
Dr. Al Hegab answered
40 years experience Allergy and Immunology
Several: OTC second generation antihistamines as cetirizine and loratadine, but read the labels and instructions carefully
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A 37-year-old female asked:
Dr. Harold Fields
61 years experience Family Medicine
Meds: I think it is unwise to take all these meds together unless for a specific condition.

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