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Pregabalin and Red cell distribution width increased - a phase IV clinical study of FDA data

Summary:

Red cell distribution width increased is reported as a side effect among people who take Pregabalin (pregabalin), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Metformin, and have Type 2 diabetes.

The phase IV clinical study analyzes which people have Red cell distribution width increased when taking Pregabalin. It is created by eHealthMe based on reports of 73,056 people who have side effects when taking Pregabalin from the FDA, and is updated regularly.

What is Pregabalin?

Pregabalin has active ingredients of pregabalin. It is often used in fibromyalgia. eHealthMe is studying from 74,070 Pregabalin users. Check the latest studies of Pregabalin.

What is Red cell distribution width increased?

Red cell distribution width increased is found to be associated with 604 drugs and 656 conditions by eHealthMe. Check the latest studies of Red cell distribution width increased.

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 Aug, 27, 2026

73,056 people reported to have side effects when taking Pregabalin.
Among them, 68 people (0.09%) have Red cell distribution width increased.

Could Pregabalin cause Red cell distribution width increased?

Among these 68 people:

How long have people been on Pregabalin when they have Red cell distribution width increased? *

  • < 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 Red cell distribution width increased when taking Pregabalin? *

  • female: 74 %
  • male: 26 %

What is the age of people who have Red cell distribution width increased when taking Pregabalin? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 4.44 %
  • 30-39: 4.44 %
  • 40-49: 8.89 %
  • 50-59: 26.67 %
  • 60+: 55.56 %

What are other drugs people take besides Pregabalin? *

  1. Metformin: 37 people, 54.41%
  2. Folic Acid: 32 people, 47.06%
  3. Aspirin: 31 people, 45.59%
  4. Omeprazole: 30 people, 44.12%
  5. Ramipril: 30 people, 44.12%
  6. Ticagrelor: 29 people, 42.65%
  7. Incruse Ellipta: 27 people, 39.71%
  8. Albuterol: 26 people, 38.24%
  9. Clozaril: 26 people, 38.24%
  10. Tylenol: 8 people, 11.76%

What are other side effects people have besides Red cell distribution width increased? *

  1. High Density Lipoprotein Decreased: 32 people, 47.06%
  2. High Blood Cholesterol: 32 people, 47.06%
  3. Haematocrit Decreased: 30 people, 44.12%
  4. Heart Attack: 30 people, 44.12%
  5. Haemoglobin Decreased: 27 people, 39.71%
  6. Progressive Multiple Sclerosis (chronic autoimmune disease of the central nervous system in which gradual destruction of myelin occurs in patches throughout the brain or spinal cord): 27 people, 39.71%
  7. Lymphocyte Count Decreased: 23 people, 33.82%
  8. Red Blood Cell Count Decreased: 19 people, 27.94%
  9. Thrombocytopenia (decrease of platelets in blood): 19 people, 27.94%
  10. Blood Creatinine Increased: 14 people, 20.59%

What are the existing conditions these people have? *

  1. Type 2 Diabetes: 32 people, 47.06%
  2. Schizophrenia (a mental disorder characterized by a breakdown of thought processes): 28 people, 41.18%
  3. Asthma: 8 people, 11.76%
  4. Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 8 people, 11.76%
  5. Diabetes: 7 people, 10.29%
  6. High Blood Pressure: 5 people, 7.35%
  7. Vasculitis (inflammation of a blood vessel or blood vessels): 5 people, 7.35%
  8. Hereditary Neuropathic Amyloidosis (hereditary- diseases resulting from abnormal deposition of certain proteins (amyloid) in various bodily areas by problems with signals from the nerves): 4 people, 5.88%
  9. Migraine (headache): 4 people, 5.88%
  10. Ovarian Cancer (cancer of ovary): 3 people, 4.41%

* Approximation only. Some reports may have incomplete information.

Do you take Pregabalin and have Red cell distribution width increased?

- Check whether Red cell distribution width increased is associated with a drug or a condition
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Related studies:

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

Red cell distribution width increased treatments and more:

How severe was Red cell distribution width increased and when was it recovered:

Expand to all the drugs that have ingredients of pregabalin:

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 Pregabalin:

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 Red cell distribution width increased:

Browse all the conditions that are associated with Red cell distribution width increased:

Related publications that referenced our studies

How the study uses the data?

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