Imuran and Muscle strain - a phase IV clinical study of FDA data


Muscle strain is found among people who take Imuran, especially for people who are female, 40-49 old.

The phase IV clinical study analyzes which people take Imuran and have Muscle strain. It is created by eHealthMe based on reports of 29,400 people who have side effects when taking Imuran from the FDA, and is updated regularly. You can use the study as a second opinion to make health care decisions.

Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.

On Nov, 26, 2022

29,400 people reported to have side effects when taking Imuran.
Among them, 15 people (0.05%) have Muscle strain.

What is Imuran?

Imuran has active ingredients of azathioprine. It is often used in crohn's disease. eHealthMe is studying from 30,099 Imuran users for its effectiveness, alternative drugs and more.

What is Muscle strain?

Muscle strain (an injury to a muscle in which the muscle fibres tear) is found to be associated with 1,412 drugs and 764 conditions by eHealthMe.

Number of Imuran and Muscle strain reports submitted per year:

Could Imuran cause Muscle strain?

Gender of people who have Muscle strain when taking Imuran *:

  • female: 92.31 %
  • male: 7.69 %

Age of people who have Muscle strain when taking Imuran *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 50.0 %
  • 50-59: 37.5 %
  • 60+: 12.5 %

Common drugs people take besides Imuran *:

  1. Folic Acid: 6 people, 40.00%
  2. Abilify: 5 people, 33.33%
  3. Remicade: 5 people, 33.33%
  4. Klonopin: 5 people, 33.33%
  5. Fosamax: 4 people, 26.67%
  6. Levothroid: 3 people, 20.00%
  7. Norvasc: 3 people, 20.00%
  8. Nasarel: 3 people, 20.00%
  9. Motrin: 3 people, 20.00%
  10. Mirapex: 3 people, 20.00%

Common side effects people have besides Muscle strain *:

  1. Fatigue (feeling of tiredness): 7 people, 46.67%
  2. Nausea (feeling of having an urge to vomit): 6 people, 40.00%
  3. Weakness: 6 people, 40.00%
  4. Dizziness: 5 people, 33.33%
  5. Fall: 5 people, 33.33%
  6. Fever: 5 people, 33.33%
  7. Blood Potassium Decreased: 4 people, 26.67%
  8. Pain: 4 people, 26.67%
  9. Weight Decreased: 4 people, 26.67%
  10. Chest Pain: 4 people, 26.67%

Common conditions people have *:

  1. Pain: 4 people, 26.67%
  2. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 20.00%
  3. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 13.33%
  4. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 13.33%
  5. Stress And Anxiety: 1 person, 6.67%
  6. Restless Leg Syndrome (a powerful urge to move your legs): 1 person, 6.67%
  7. Polymyositis (inflammatory muscle disease that causes weakness of the skeletal muscles): 1 person, 6.67%
  8. Osteoporosis (bones weak and more likely to break): 1 person, 6.67%
  9. Insomnia (sleeplessness): 1 person, 6.67%
  10. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 1 person, 6.67%

* Approximation only. Some reports may have incomplete information.

Do you take Imuran and have Muscle strain?

Check whether Muscle strain is associated with a drug or a condition

How to use the study?

You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.

Related publications that referenced our studies

Related studies

How severe was Muscle strain and when was it recovered:

Expand to all the drugs that have ingredients of azathioprine:

Alternative drugs to, pros and cons of Imuran:

Common Imuran side effects:

Browse all side effects of Imuran:

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Muscle strain treatments and more:

COVID vaccines that are related to Muscle strain:

Common drugs associated with Muscle strain:

All the drugs that are associated with Muscle strain:

Common conditions associated with Muscle strain:

All the conditions that are associated with Muscle strain:

How the study uses the data?

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

Who is eHealthMe?

With medical big data and proven AI 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 600+ 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: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on 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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