Cranberry and The flu - a phase IV clinical study of FDA data

Summary:

The flu is reported as a side effect among people who take Cranberry (cranberry), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Vitamin C, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have The flu when taking Cranberry. It is created by eHealthMe based on reports of 5,039 people who have side effects when taking Cranberry from the FDA, and is updated regularly.

What is Cranberry?

Cranberry has active ingredients of cranberry. It is often used in urinary tract infection. eHealthMe is studying from 5,399 Cranberry users. Check the latest studies of Cranberry.

What is The flu?

The flu (the flu is caused by an influenza virus) is found to be associated with 2,186 drugs and 2,714 conditions by eHealthMe. Check the latest studies of The flu.



On Jul, 04, 2026

5,039 people reported to have side effects when taking Cranberry.
Among them, 51 people (1.01%) have The flu.

Could Cranberry cause The flu?

Among these 51 people:

How long have people been on Cranberry when they have The flu? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 100 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have The flu when taking Cranberry? *

  • female: 98 %
  • male: 2 %

What is the age of people who have The flu when taking Cranberry? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 2.63 %
  • 30-39: 13.16 %
  • 40-49: 2.63 %
  • 50-59: 23.68 %
  • 60+: 57.89 %

What are other drugs people take besides Cranberry? *

  1. Vitamin C: 20 people, 39.22%
  2. Vitamin D3: 15 people, 29.41%
  3. Vitamin D: 13 people, 25.49%
  4. Aspirin: 12 people, 23.53%
  5. Tylenol: 10 people, 19.61%
  6. Biotin: 9 people, 17.65%
  7. Coenzyme Q10: 7 people, 13.73%
  8. Singulair: 7 people, 13.73%
  9. Protonix: 7 people, 13.73%
  10. Sodium Chloride: 7 people, 13.73%

What are other side effects people have besides The flu? *

  1. Diarrhea: 15 people, 29.41%
  2. Nausea (feeling of having an urge to vomit): 14 people, 27.45%
  3. Fatigue (feeling of tiredness): 14 people, 27.45%
  4. Nasopharyngitis (inflammation of the nasopharynx): 13 people, 25.49%
  5. Nausea And Vomiting: 13 people, 25.49%
  6. Headache (pain in head): 13 people, 25.49%
  7. Pneumonia: 11 people, 21.57%
  8. High Blood Pressure: 9 people, 17.65%
  9. White Blood Cell Count Decreased: 8 people, 15.69%
  10. Sinusitis (inflammation of sinus): 8 people, 15.69%

What are the existing conditions these people have? *

  1. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 12 people, 23.53%
  2. High Blood Pressure: 8 people, 15.69%
  3. Immunodeficiency Common Variable: 7 people, 13.73%
  4. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 11.76%
  5. Pain: 6 people, 11.76%
  6. Meralgia Paraesthetica (a neurological (nerve) condition that causes pain in the outer thigh): 5 people, 9.80%
  7. Inflammation: 5 people, 9.80%
  8. Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 5 people, 9.80%
  9. Fatigue (feeling of tiredness): 5 people, 9.80%
  10. Dyslipidaemia (abnormal amount of lipids): 5 people, 9.80%

* Approximation only. Some reports may have incomplete information.

Do you take Cranberry and have The flu?

- Check whether The flu 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 Cranberry:

The flu treatments and more:

How severe was The flu and when was it recovered:

Expand to all the drugs that have ingredients of cranberry:

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 Cranberry:

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 The flu:

Browse all the conditions that are associated with The flu:


How the study uses the data?

The study uses data from the FDA. It is based on cranberry (the active ingredients of Cranberry) and Cranberry (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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