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Diphenhydramine and Drowsiness: What Users Say (Page 4)

Brand names: Benadryl, Banophen, Benadryl Allergy, ZzzQuil, Diphen, Unisom SleepGels, Benadryl Children's Allergy, Sominex, Diphenydramine Quick Melt, Nytol, DPH, Calm-Aid, Diphenyl, Unisom SleepMelts, Diphendryl, Buckley's Bedtime, Hyrexin, Diphenhist, Hydramine, Hydramine Compound, Allermax, Dormin, Snooze Fast, Sominex Maximum Strength Caplet, Unisom SleepMinis, Unisom Liquid, ConRx Allergy, Dicopanol, Sleep Tablets, Hydramine Cough Syrup, Bydramine, Diphedryl, Diphen AF, Diphen Cough, Aler-Dryl, Allergia-C, Benahist-10, Benahist-50, Benoject-50, Diphenadryl, Genahist, Aller-G-Time, Sleep Tab II, Nytol QuickCaps, Trux-adryl, Valu-Dryl, Altaryl, Beldin, Belix, Vicks QlearQuil Nighttime Allergy Relief, Silphen Cough, Diphenylin, Nytol Caplet, Compoz Nighttime Sleep Aid, Sleepinal, Help I Can't Sleep Twilite Banaril Aler-Tab Siladryl Allergy Sleep-ettes D Diphenmax Ben-Tann Dytan Vanamine PD Pharbedryl Histaprin Z-Sleep Aurodryl Children's Allergy Simply Sleep Complete Allergy Relief Dytuss Miles Nervine Scot-Tussin Allergy Sleepwell 2-nite …show all brand names

Reviews for Diphenhydramine

Commonly mentioned side effects
  • don...
  • November 18, 2011

Diphenhydramine for Insomnia "I take it 3 or 4 times a week, and it works well. Full night's sleep. A little drowsy when I wake up, but it passes after my morning coffee. I love it."

10 / 10
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29 Report
  • Gla...
  • Taken for 6 months to 1 year
  • December 7, 2020

Diphenhydramine for Insomnia "I have used ZzzQuil every night for the past 6 months or so. I love it. I get drowsy around an hour after consuming and sleep soundly for 8-10 hours."

10 / 10
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11 Report
  • Emm...
  • January 14, 2020

Diphenhydramine for Insomnia "Took Nytol to sleep because of insomnia due to exam stress, and the day after I feel so drowsy and high at the same time. Tried to nap earlier, but I couldn't. Never taking these pills again."

1 / 10
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9 Report

See also:

Frequently asked questions

  • gra...
  • March 2, 2016

Diphenhydramine for Allergic Rhinitis "experienced very low heart rate, palpitations, very disoriented, drowsy after taking only one 25 mg pill."

1 / 10
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11 Report
  • Mon...
  • September 1, 2018

Diphenhydramine for Insomnia "This medication leaves me very groggy the next day."

5 / 10
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5 Report

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  • Anonymous
  • Taken for 1 to 2 years
  • October 19, 2015

For Allergic Reactions "Drowsiness is a recurring problem for me. I have difficulty focusing and end up passing out. The effect of the drug comes a little slowly, depending on how severe my allergy attack is."

7 / 10
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4 Report
  • Anonymous
  • August 3, 2017

Diphenhydramine for Allergic Rhinitis "Take it at night if visiting people who own cats or dogs. Only problem is drowsiness if taken when you're not going to sleep."

8 / 10
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4 Report

More FAQ

  • bmc...
  • Taken for 10 years or more
  • May 19, 2023

Diphenhydramine for Allergic Rhinitis "It is the only thing I've found that actually works, it clears my sinuses. It does make me slightly drowsy, but nothing to be worried about."

9 / 10
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1 Report
  • Mam...
  • Taken for less than 1 month
  • June 23, 2012

For Allergic Reactions "It's a great medication, except for the drowsy and sluggish effects."

7 / 10
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4 Report
  • Lau...
  • Taken for 1 to 2 years
  • August 30, 2021

Diphenhydramine for Insomnia "Absolutely brilliant. Work for me every time I take them. They make me feel drowsy about 20 minutes in, and before I know it, morning is here."

10 / 10
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1 Report
  • Anonymous
  • June 19, 2009

For Allergic Rhinitis "Diphenhydramine is the 'nuclear option' for my hay fever. It absolutely stops the allergic reaction. It's also an unstoppable sedative that will put me to sleep for at least 3 hours."

7 / 10
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2 Report
  • Lua...
  • Taken for less than 1 month
  • July 30, 2021

Diphenhydramine for Insomnia "Took me 6 hours to get to sleep (I was really restless and tossing and turning), then slept in and felt groggy when I woke up."

3 / 10
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0 Report
  • asd...
  • Taken for 1 to 6 months
  • December 10, 2021

For Insomnia "This is vile stuff, 25-50 mg makes you a little drowsy, but more isn't good. No help if your insomnia is real."

2 / 10
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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.