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Cetirizine Hydrochloride Related Somnolence

Official FDA Reports731
Social Media Events614
Active Ingredients
  • Cetirizine Hydrochloride
Additional Drug Brands and Names
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Additional Terms for Somnolence
  • Fatigue
  • Sleepiness
  • Drowsiness
  • Groggy
  • Very Sleepy
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  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Zyrtec.


The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (AERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.

List of Possible Side Effects Reported

Report Date Dosage Indication Outcome Country Gender Age Weight (lbs)

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.

Social Media Comments From Around the Web

The following are comments from users that experienced side effects while taking Milnacipran Hydrochloride

Cetirizine Hydrochloride

can make some drowsy , other generics may be cheaper makes me less drowsy than others, helps topical and respiratory allergies, seems safe, can be taken daily if needed, no prescript...

Source:" Cetirizine-Hydrochloride-Generic-Zyrte...

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Did the author experience somnolence while taking cetirizine hydrochloride?

What is this?

Zyrtec Allergy

a few side effects: can cause drowsiness , can be higher in price 24 hr relief, helps w/ indoor and outdoor allergies, rx strength but is over the counter pros> Zyrtec allergy 24 hr...

Source:" Zyrtec-Allergy-Medication-review-598d

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Did the author experience somnolence while taking zyrtec allergy?

What is this?


... sneezing, along with drying up a runny nose and helping with itchy eyes and/or throat due to allergies.Although the bottle states that there may be side effects, such as drowsiness or sleeplessness, I...

Source:" Zyrtec-Allergy-Medication-review-33375

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Did the author experience somnolence while taking zyrtec?

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Tell us about your Experience with Cetirizine Hydrochloride Related Somnolence

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Druginformer Identified Side Effects: Nasal dryness, Somnolence

Posted By Anonymous in askapatient.com on August 28, 2015 @ 12:00 am

Side Effects: Dry nose, nasal crusting, blood in nose, mild drowsiness This stuff works well on hay fever, maybe a little too well because I can only take half a pill and I'll be good for a...

Druginformer Identified Side Effects: Thought withdrawal, Increased appetite, Somnolence

Posted By Anonymous in askapatient.com on August 24, 2015 @ 12:00 am

... It's like my brain was sleeping. I gave up and slept for 2 hours after a full 8 hours of sleep the night before. I am normally a high energy person so I thought I was losing my mind until I realized...

Druginformer Identified Side Effects: Somnolence

Posted By Anonymous in askapatient.com on July 13, 2015 @ 12:00 am

Side Effects: Drowsiness. Could not stay awake with this medication. Would sleep for 10-12 hours and still feel tired after getting out of bed. I even tried splitting the pill to make 5 mg ...

Druginformer Identified Side Effects: Hypersensitivity, Drug ineffective, Somnolence

Posted By Anonymous in askapatient.com on June 16, 2015 @ 12:00 am

Side Effects: Zyrtec did not produce drowsiness for me. Also was ineffective at controlling symptoms of pollen, dust, mold or dander allergy. ineffective

Druginformer Identified Side Effects: Headache, Fatigue, Hypersomnia, Dizziness, Pain, Agitation, Loss of consciousness, Depressed mood, Abnormal dreams, Anaesthesia, Irritability, Mood altered, Somnolence

Posted By Anonymous in askapatient.com on June 15, 2015 @ 12:00 am

... During the day on the weekend, I would fall asleep and have bad dreams. Am so tired and dizzy during the day that I can't get anything done. Also caused painful headaches, agitation, irritability, and...

Druginformer Identified Side Effects: Arthralgia, Headache, Abdominal discomfort, Pruritus, Anger, Cardiac flutter, Walking disability, Depression, Disturbance in attention, Irritability, Somnolence, Vision blurred, Weight increased

Posted By Anonymous in askapatient.com on May 23, 2015 @ 12:00 am

Side Effects: Nausea, joint paint (especially hips and shoulders), extreme irritability, crippling fatigue, cannot concentrate, terrible ADD symptoms, brain fog, cannot get out of bed, anger/rage, de...

Druginformer Identified Side Effects: Hypersomnia, Sedation, Disturbance in attention, Lacrimation increased, Rhinorrhoea, Somnolence

Posted By Anonymous in askapatient.com on May 4, 2015 @ 12:00 am

Good Grief....I took a Zyrtec 8:00pm last night and I couldn't get out of bed this morning for work. If I didn't know better I thought I mistakenly taken an ambien. I woke up like I was ...

Druginformer Identified Side Effects: Abdominal discomfort, Mood swings, Anxiety, Sneezing, Abnormal dreams, Apathy, Dehydration, Dry eye, Insomnia, Irritability, Muscular weakness, Restlessness, Somnolence, Vision blurred, Psychotic disorder

Posted By Anonymous in askapatient.com on May 1, 2015 @ 12:00 am

... coaster ride that I am now getting off! From fatigue ,restlessness ,waking up every hour ,bad dreams ,anxiety, weakness ,crazy dry eyes ,always thirsty ,stomach problems ,mood swings crankiness , sho...

Druginformer Identified Side Effects: Tremor, Hunger, Abnormal weight gain, Loss of consciousness, Anxiety, Sneezing, Abnormal dreams, Depression, Diarrhoea, Irritability, Muscular weakness, Somnolence, Eye pruritus

Posted By Anonymous in askapatient.com on April 27, 2015 @ 12:00 am

... thing I noticed was very vivid dreams... nothing scary or violent, but I never remembered my dreams before taking this medicine. Next, fatigue, irritability, drowsiness and I felt shaky and weak at ti...

Druginformer Identified Side Effects: Vomiting, Food craving, Dry eye, Dry mouth, Respiration abnormal, Somnolence

Posted By Anonymous in askapatient.com on March 10, 2015 @ 12:00 am

Side Effects: Can't breathe out of my nose at night. Fatigue, vomiting, and extremely craving sweets. Dry mouth and throat. Severley dry eyes I will never take another zyrtec again and do n...

* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.