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Uloric and Drowsiness - a phase IV clinical study of FDA data

Summary:

Drowsiness is reported as a side effect among people who take Uloric (febuxostat), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Tylenol, and have Asthma.

The phase IV clinical study analyzes which people have Drowsiness when taking Uloric. It is created by eHealthMe based on reports of 7,878 people who have side effects when taking Uloric from the FDA, and is updated regularly.

What is Uloric?

Uloric has active ingredients of febuxostat. It is often used in gout. eHealthMe is studying from 8,067 Uloric users. Check the latest studies of Uloric.

What is Drowsiness?

Drowsiness is found to be associated with 2,863 drugs and 4,800 conditions by eHealthMe. Check the latest studies of Drowsiness.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.



On Sep, 01, 2026

7,878 people reported to have side effects when taking Uloric.
Among them, 92 people (1.17%) have Drowsiness.

Could Uloric cause Drowsiness?

Among these 92 people:

How long have people been on Uloric when they have Drowsiness? *

  • < 1 month: 50.0 %
  • 1 - 6 months: 33.33 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 16.67 %
  • 10+ years: 0.0 %

What is the gender of people who have Drowsiness when taking Uloric? *

  • female: 21.95 %
  • male: 78.05 %

What is the age of people who have Drowsiness when taking Uloric? *

  • 0-1: 0.0 %
  • 2-9: 1.45 %
  • 10-19: 0.0 %
  • 20-29: 5.8 %
  • 30-39: 1.45 %
  • 40-49: 4.35 %
  • 50-59: 13.04 %
  • 60+: 73.91 %

What are other drugs people take besides Uloric? *

  1. Tylenol: 30 people, 32.61%
  2. Lasix: 29 people, 31.52%
  3. Robinul: 28 people, 30.43%
  4. Lipitor: 27 people, 29.35%
  5. Spiriva: 26 people, 28.26%
  6. Dilaudid: 26 people, 28.26%
  7. Tiotropium Bromide: 25 people, 27.17%
  8. Flonase: 19 people, 20.65%
  9. Flomax: 18 people, 19.57%
  10. Haldol: 18 people, 19.57%

What are other side effects people have besides Drowsiness? *

  1. Confusional State: 37 people, 40.22%
  2. Malaise (a feeling of general discomfort or uneasiness): 33 people, 35.87%
  3. Dyspnea (difficult or laboured breathing): 31 people, 33.70%
  4. Oedema Peripheral (superficial swelling): 31 people, 33.70%
  5. Fever: 30 people, 32.61%
  6. Neuralgia (pain in one or more nerves): 30 people, 32.61%
  7. Tremor (trembling or shaking movements in one or more parts of your body): 30 people, 32.61%
  8. General Physical Health Deterioration (weak health status): 29 people, 31.52%
  9. Myoclonus (a brief, involuntary twitching of a muscle or a group of muscles): 29 people, 31.52%
  10. Neurotoxicity (when the exposure to natural or artificial toxic substances, which are called neurotoxins, alters the normal activity of the nervous system): 29 people, 31.52%

What are the existing conditions these people have? *

  1. Asthma: 30 people, 32.61%
  2. Hypersensitivity: 4 people, 4.35%
  3. Blood Pressure Abnormal: 4 people, 4.35%
  4. Fibromyalgia (a long-term condition which causes pain all over the body): 4 people, 4.35%
  5. High Blood Cholesterol: 4 people, 4.35%
  6. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 4.35%
  7. Neuralgia (pain in one or more nerves): 4 people, 4.35%
  8. Parkinson's Disease: 4 people, 4.35%
  9. Pain: 3 people, 3.26%
  10. Bipolar Disorder (mood disorder): 3 people, 3.26%

* Approximation only. Some reports may have incomplete information.

Do you take Uloric and have Drowsiness?

- Check whether Drowsiness is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously



Related studies:

Effectiveness of, long term effects of, and alternative drugs to Uloric:

Drowsiness treatments and more:

How severe was Drowsiness and when was it recovered:

Expand to all the drugs that have ingredients of febuxostat:

Sub-studies 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 Uloric:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Drowsiness:

Browse all the conditions that are associated with Drowsiness:


How the study uses the data?

The study uses data from the FDA. It is based on febuxostat (the active ingredients of Uloric) and Uloric (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

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. Our phase IV clinical studies alone cannot establish cause-effect relationship. 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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.



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