Methotrexate and Hypoxic-ischaemic encephalopathy - a phase IV clinical study of FDA data

Summary:

Hypoxic-ischaemic encephalopathy is reported as a side effect among people who take Methotrexate (methotrexate sodium), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Prednisone, and have Pain.

The phase IV clinical study analyzes which people have Hypoxic-ischaemic encephalopathy when taking Methotrexate. It is created by eHealthMe based on reports of 599,650 people who have side effects when taking Methotrexate from the FDA, and is updated regularly.

What is Methotrexate?

Methotrexate has active ingredients of methotrexate sodium. It is often used in rheumatoid arthritis. eHealthMe is studying from 604,312 Methotrexate users. Check the latest studies of Methotrexate.

What is Hypoxic-ischaemic encephalopathy?

Hypoxic-ischaemic encephalopathy (a condition that occurs when the entire brain is deprived of an adequate oxygen supply, but the deprivation isn't total) is found to be associated with 373 drugs and 599 conditions by eHealthMe. Check the latest studies of Hypoxic-ischaemic encephalopathy.



On Jul, 13, 2026

599,650 people reported to have side effects when taking Methotrexate.
Among them, 22 people (0.0%) have Hypoxic-ischaemic encephalopathy.

Could Methotrexate cause Hypoxic-ischaemic encephalopathy?

Among these 22 people:

How long have people been on Methotrexate when they have Hypoxic-ischaemic encephalopathy? *

  • < 1 month: 66.67 %
  • 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: 33.33 %

What is the gender of people who have Hypoxic-ischaemic encephalopathy when taking Methotrexate? *

  • female: 65 %
  • male: 35 %

What is the age of people who have Hypoxic-ischaemic encephalopathy when taking Methotrexate? *

  • 0-1: 0.0 %
  • 2-9: 11.11 %
  • 10-19: 11.11 %
  • 20-29: 16.67 %
  • 30-39: 0.0 %
  • 40-49: 27.78 %
  • 50-59: 5.56 %
  • 60+: 27.78 %

What are other drugs people take besides Methotrexate? *

  1. Prednisone: 5 people, 22.73%
  2. Keflex: 3 people, 13.64%
  3. Vancomycin: 3 people, 13.64%
  4. Neurontin: 3 people, 13.64%
  5. Remicade: 3 people, 13.64%
  6. Aredia: 3 people, 13.64%
  7. Ambien: 3 people, 13.64%
  8. Dexamethasone: 3 people, 13.64%
  9. Humira: 3 people, 13.64%
  10. Ibuprofen: 2 people, 9.09%

What are other side effects people have besides Hypoxic-ischaemic encephalopathy? *

  1. Back Pain: 8 people, 36.36%
  2. Hypotension (abnormally low blood pressure): 7 people, 31.82%
  3. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 6 people, 27.27%
  4. Anaemia (lack of blood): 6 people, 27.27%
  5. Pneumonia: 6 people, 27.27%
  6. Dyspnea (difficult or laboured breathing): 6 people, 27.27%
  7. Headache (pain in head): 5 people, 22.73%
  8. Fever: 5 people, 22.73%
  9. Cardiac Arrest: 5 people, 22.73%
  10. Visual Impairment: 4 people, 18.18%

What are the existing conditions these people have? *

  1. Pain: 4 people, 18.18%
  2. Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 3 people, 13.64%
  3. Psoriasis (immune-mediated disease that affects the skin): 3 people, 13.64%
  4. Osteoporosis (bones weak and more likely to break): 2 people, 9.09%
  5. Behcet's Syndrome (involves inflammation of the blood vessels): 2 people, 9.09%
  6. Headache (pain in head): 2 people, 9.09%
  7. Gastritis (inflammation of stomach): 1 person, 4.55%
  8. Asthma: 1 person, 4.55%
  9. B Precursor Type Acute Leukaemia (lymphoid cancer): 1 person, 4.55%
  10. Birth Control: 1 person, 4.55%

* Approximation only. Some reports may have incomplete information.

Do you take Methotrexate and have Hypoxic-ischaemic encephalopathy?

- Check whether Hypoxic-ischaemic encephalopathy is associated with a drug or a condition
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Related studies:

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

Hypoxic-ischaemic encephalopathy treatments and more:

How severe was Hypoxic-ischaemic encephalopathy and when was it recovered:

Expand to all the drugs that have ingredients of methotrexate sodium:

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 Methotrexate:

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 Hypoxic-ischaemic encephalopathy:

Browse all the conditions that are associated with Hypoxic-ischaemic encephalopathy:

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on methotrexate sodium (the active ingredients of Methotrexate) and Methotrexate (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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