Trexall and Azulfidine drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Trexall (methotrexate sodium) and Azulfidine (sulfasalazine). Common drug interactions include fatigue among females and cyst among males.

The phase IV clinical study analyzes what interactions people have when they take Trexall and Azulfidine. It is created by eHealthMe based on reports of 22 people who take the same drugs from the FDA, and is updated regularly.

What is Trexall?

Trexall has active ingredients of methotrexate sodium. It is often used in rheumatoid arthritis. eHealthMe is studying from 1,439 Trexall users. Check the latest studies of Trexall.

What is Azulfidine?

Azulfidine has active ingredients of sulfasalazine. It is often used in rheumatoid arthritis. eHealthMe is studying from 7,997 Azulfidine users. Check the latest studies of Azulfidine.



On Jul, 09, 2026

22 people who take Trexall and Azulfidine together, and have interactions are studied.

Trexall and Azulfidine drug interactions.

What are the common drug interactions of Trexall and Azulfidine, by gender? *:

female:

  1. Fatigue (feeling of tiredness)
  2. Hypoaesthesia (reduced sense of touch or sensation)
  3. Infection
  4. Pyrexia (fever)
  5. Back pain
  6. Chills (felling of cold)
  7. Hypersensitivity
  8. Injection site reaction
  9. Malaise (a feeling of general discomfort or uneasiness)
  10. Myalgia (muscle pain)

male:

  1. Cyst (a closed sac)
  2. Arthralgia (joint pain)
  3. Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling)
  4. Drug ineffective
  5. Fatigue (feeling of tiredness)
  6. Headache (pain in head)
  7. Lipoma (a growth of fatty tissue that slowly develops just under your skin)
  8. Nerve root compression
  9. Pain in jaw
  10. Peripheral swelling

What are the common drug interactions of Trexall and Azulfidine, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Hypersensitivity
  2. Hypoaesthesia (reduced sense of touch or sensation)
  3. Infection
  4. Injection site pain
  5. Injection site reaction
  6. Malaise (a feeling of general discomfort or uneasiness)
  7. Nausea (feeling of having an urge to vomit)
  8. Psoriasis (immune-mediated disease that affects the skin)
  9. Psoriatic arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop)
  10. Red blood cell sedimentation rate increased

40-49:

  1. Back pain
  2. Chills (felling of cold)
  3. Fatigue (feeling of tiredness)
  4. Infection
  5. Myalgia (muscle pain)
  6. Pyrexia (fever)
  7. Hypersensitivity
  8. Hypoaesthesia (reduced sense of touch or sensation)
  9. Injection site reaction
  10. Malaise (a feeling of general discomfort or uneasiness)

50-59:

  1. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  2. Pain in extremity
  3. Sinusitis (inflammation of sinus)
  4. Arthralgia (joint pain)
  5. Drug ineffective
  6. Erythema (redness of the skin)
  7. Feeling hot
  8. Injection site erythema (redness at injection site)
  9. Injection site haemorrhage (bleeding from injection site)
  10. Injection site pruritus (severe itching at injection site)

60+:

  1. Arthralgia (joint pain)
  2. Fatigue (feeling of tiredness)
  3. Drug ineffective
  4. Headache (pain in head)
  5. Intervertebral disc protrusion (spinal disc protrusion)
  6. Lipoma (a growth of fatty tissue that slowly develops just under your skin)
  7. Nerve root compression
  8. Nodule (a growth of abnormal tissue)
  9. Pain in jaw
  10. Peripheral swelling

What are the existing conditions these people have? *

  1. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 4 people, 18.18%
  2. Pain: 4 people, 18.18%
  3. Muscle Spasms (muscle contraction): 4 people, 18.18%
  4. Hyperlipidaemia (presence of excess lipids in the blood): 4 people, 18.18%
  5. High Blood Pressure: 4 people, 18.18%
  6. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 18.18%
  7. Diabetic Neuropathy (neuropathic disorders that are associated with diabetes mellitus): 4 people, 18.18%
  8. Diabetes: 4 people, 18.18%
  9. Back Pain: 4 people, 18.18%
  10. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 3 people, 13.64%

* Approximation only. Some reports may have incomplete information.

Do you take Trexall and Azulfidine?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously



Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Trexall and Azulfidine:

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

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 Trexall:

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 side effects of Azulfidine:

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 interactions between Trexall and drugs from A to Z:

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 interactions between Azulfidine and drugs from A to Z:

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

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 and sulfasalazine (the active ingredients of Trexall and Azulfidine, respectively), and Trexall and Azulfidine (the brand names). 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.



Recent studies on eHealthMe: