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Benadryl and Nausea: What Users Say

Nausea: mentioned by 7 users (8.9%)

Based on user experiences from 79 Benadryl reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

drowsiness 15.2%
nausea 8.9%
itching 6.3%
heart palpitations 5.1%
shortness of breath 5.1%
swelling 5.1%
allergic reaction 3.8%
anxiety 3.8%
dry mouth 3.8%
increased heart rate 3.8%

Reviews for Benadryl

Showing 7 reviews tagged with "nausea". Clear filters to view all 79 reviews.
Commonly mentioned side effects
  • Anonymous
  • June 15, 2012

For Nausea/Vomiting "I have emetophobia, that is, a pervasive fear of vomiting. I do not know if this affects vomiting, but if I feel nauseous, Benadryl works wonders. My stomach settles right down and my anxiety lowers just enough for me to deal with it without the use of benzodiazepines."

7 / 10
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  • Jus...
  • Taken for less than 1 month
  • May 9, 2020

For Allergic Reactions "This is an old thread but thought I would share. I was in the hospital in labor. I developed a reaction to the epidural that caused severe itchiness. They gave me something that didn't help, and after several hours of itching, a nurse gave me IV Benadryl. I immediately couldn't breathe and felt like someone kicked me in the chest. I was warm all over, nauseous, and on the edge of passing out. An EKG also showed I had a heart arrhythmia from it. I've taken oral Benadryl in the past with no problems. Now it's on my list of allergies, and I tell every doc I see. Most terrifying experience."

1 / 10
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36 Report
  • Con...
  • April 26, 2017

For Allergic Reactions "I have no rest every time I take Benadryl. I feel I have a really bad reaction as I feel restless, my body feels itchy, nauseous, and it makes me feel angry. Feeling restless really hurts my stomach. Am I allergic to it, or is it a bad reaction?"

2 / 10
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22 Report

Frequently asked questions

  • net...
  • Taken for less than 1 month
  • October 29, 2022

For Nausea/Vomiting "Took Benadryl when I was out of town and did not have my generic brand Equate with me. I had done this twice, and both times, the Benadryl made me sick with diarrhea and nausea. I will always stick with the Equate for hay fever, as I never feel sick from it."

1 / 10
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  • Anonymous
  • September 2, 2017

For Nausea/Vomiting "I take Methotrexate weekly, 25 mg, and have found that taking Benadryl at a dose of 12 and 24 hours after my weekly dose helps reduce the nausea."

8 / 10
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23 Report

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  • Wil...
  • Taken for less than 1 month
  • March 22, 2021

For Nausea/Vomiting "I used it originally for food allergies but ended up puking (expected, to be honest). Not long after, I took another to wave off the extra symptoms like nausea. All it did was induce vomiting again."

5 / 10
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  • Amy...
  • Taken for less than 1 month
  • August 7, 2018

For Nausea/Vomiting "I took a single pill of Benadryl, and it made me vomit, nauseous, diarrhea, dry throat, and gave me a stuffy nose. I wouldn't give this to my worst enemy."

1 / 10
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28 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.