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Metformin and Sudden hearing loss - a phase IV clinical study of FDA data

Summary:

Sudden hearing loss is reported as a side effect among people who take Metformin (metformin hydrochloride), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Aspirin, and have Depression.

The phase IV clinical study analyzes which people have Sudden hearing loss when taking Metformin. It is created by eHealthMe based on reports of 453,860 people who have side effects when taking Metformin from the FDA, and is updated regularly.

What is Metformin?

Metformin has active ingredients of metformin hydrochloride. It is often used in diabetes. eHealthMe is studying from 465,354 Metformin users. Check the latest studies of Metformin.

What is Sudden hearing loss?

Sudden hearing loss is found to be associated with 145 drugs and 496 conditions by eHealthMe. Check the latest studies of Sudden hearing loss.

On Jul, 14, 2026

453,860 people reported to have side effects when taking Metformin.
Among them, 27 people (0.01%) have Sudden hearing loss.

Could Metformin cause Sudden hearing loss?

Among these 27 people:

How long have people been on Metformin when they have Sudden hearing loss? *

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 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 Sudden hearing loss when taking Metformin? *

  • female: 40.74 %
  • male: 59.26 %

What is the age of people who have Sudden hearing loss when taking Metformin? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 21.74 %
  • 50-59: 17.39 %
  • 60+: 60.87 %

What are other drugs people take besides Metformin? *

  1. Crestor: 3 people, 11.11%
  2. Januvia: 3 people, 11.11%
  3. Amaryl: 3 people, 11.11%
  4. Aspirin: 3 people, 11.11%
  5. Ramipril: 2 people, 7.41%
  6. Carvedilol: 2 people, 7.41%
  7. Enbrel: 2 people, 7.41%
  8. Canagliflozin: 2 people, 7.41%
  9. Calcium: 2 people, 7.41%
  10. Omeprazole: 2 people, 7.41%

What are other side effects people have besides Sudden hearing loss? *

  1. High Blood Pressure: 5 people, 18.52%
  2. Tinnitus (a ringing in the ears): 3 people, 11.11%
  3. High Blood Cholesterol: 3 people, 11.11%
  4. Red Blood Cell Count Decreased: 2 people, 7.41%
  5. Haemoglobin Decreased: 2 people, 7.41%
  6. Hearing Impaired: 2 people, 7.41%
  7. High Density Lipoprotein Decreased: 2 people, 7.41%
  8. Hyperkalemia (damage to or disease of the kidney): 2 people, 7.41%
  9. Blood Sodium Decreased: 2 people, 7.41%
  10. Protein Urine Present: 2 people, 7.41%

What are the existing conditions these people have? *

  1. High Blood Pressure: 3 people, 11.11%
  2. Depression: 3 people, 11.11%
  3. Coronary Heart Disease (narrowing or blockage of the coronary arteries): 2 people, 7.41%
  4. Metastatic Malignant Melanoma (spreadable cancer tumour of melanine): 2 people, 7.41%
  5. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 1 person, 3.70%
  6. Arrhythmias (irregular heartbeat): 1 person, 3.70%
  7. Asthma: 1 person, 3.70%
  8. Folliculitis (infection of hair root): 1 person, 3.70%
  9. Gastric Ulcer (stomach ulcer): 1 person, 3.70%
  10. Hepatic Neoplasm Malignant (liver cancer): 1 person, 3.70%

* Approximation only. Some reports may have incomplete information.

Do you take Metformin and have Sudden hearing loss?

- Check whether Sudden hearing loss 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 Metformin:

Sudden hearing loss treatments and more:

How severe was Sudden hearing loss and when was it recovered:

Expand to all the drugs that have ingredients of metformin hydrochloride:

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 Metformin:

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 Sudden hearing loss:

Browse all the conditions that are associated with Sudden hearing loss:

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on metformin hydrochloride (the active ingredients of Metformin) and Metformin (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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