Who have Lightheadedness with Zyrtec - from FDA reports


Lightheadedness is found among people who take Zyrtec, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Singulair, and have Hypersensitivity. This study is created by eHealthMe based on reports of 64,005 people who have side effects when taking Zyrtec from FDA, and is updated regularly.

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On Jan, 16, 2019

64,005 people reported to have side effects when taking Zyrtec.
Among them, 3,011 people (4.7%) have Lightheadedness


Number of reports submitted per year:

Could Zyrtec cause Lightheadedness?

Time on Zyrtec when people have Lightheadedness *:

  • < 1 month: 70.8 %
  • 1 - 6 months: 11.68 %
  • 6 - 12 months: 0.73 %
  • 1 - 2 years: 5.84 %
  • 2 - 5 years: 6.57 %
  • 5 - 10 years: 0.73 %
  • 10+ years: 3.65 %

Gender of people who have Lightheadedness when taking Zyrtec *:

  • female: 74.67 %
  • male: 25.33 %

Age of people who have Lightheadedness when taking Zyrtec *:

  • 0-1: 0.08 %
  • 2-9: 1.41 %
  • 10-19: 4.2 %
  • 20-29: 7.4 %
  • 30-39: 10.18 %
  • 40-49: 17.0 %
  • 50-59: 22.36 %
  • 60+: 37.36 %

Top conditions involved for these people *:

  1. Hypersensitivity: 375 people, 12.45%
  2. High Blood Pressure: 218 people, 7.24%
  3. Asthma: 205 people, 6.81%
  4. Pain: 183 people, 6.08%
  5. Depression: 179 people, 5.94%
  6. Multiple Allergies (allergy to multiple agents): 157 people, 5.21%
  7. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 139 people, 4.62%
  8. Stress And Anxiety: 131 people, 4.35%
  9. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 126 people, 4.18%
  10. High Blood Cholesterol: 125 people, 4.15%

Top co-used drugs for these people *:

  1. Singulair: 330 people, 10.96%
  2. Aspirin: 310 people, 10.30%
  3. Flonase: 272 people, 9.03%
  4. Xanax: 261 people, 8.67%
  5. Prilosec: 243 people, 8.07%
  6. Lasix: 233 people, 7.74%
  7. Lipitor: 219 people, 7.27%
  8. Synthroid: 215 people, 7.14%
  9. Nexium: 215 people, 7.14%
  10. Neurontin: 204 people, 6.78%

Top other side effects for these people *:

  1. Nausea (feeling of having an urge to vomit): 935 people, 31.05%
  2. Fatigue (feeling of tiredness): 812 people, 26.97%
  3. Headache (pain in head): 775 people, 25.74%
  4. Weakness: 602 people, 19.99%
  5. Breathing Difficulty: 549 people, 18.23%
  6. Pain: 499 people, 16.57%
  7. Stress And Anxiety: 494 people, 16.41%
  8. Nausea And Vomiting: 460 people, 15.28%
  9. Fall: 452 people, 15.01%
  10. Chest Pain: 439 people, 14.58%

* Approximation only. Some reports may have incomplete information.

Do you have Lightheadedness while taking Zyrtec?


You are not alone:




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Zyrtec has active ingredients of cetirizine hydrochloride. It is often used in allergies. (latest outcomes from Zyrtec 67,869 users)

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Zyrtec side effects

Browse by gender and age

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+


Browse all side effects of Zyrtec
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Compare Zyrtec to similar drugs:


What would happen?

Predict new side effects and undetected conditions when you take Zyrtec and have Lightheadedness


FDA reports used in this study



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NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

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