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Acyclovir and Joint contracture - a phase IV clinical study of FDA data

Summary:

Joint contracture is reported as a side effect among people who take Acyclovir (acyclovir), especially for people who are male, 60+ old, also take Magnevist, and have Nuclear magnetic resonance imaging brain.

The phase IV clinical study analyzes which people have Joint contracture when taking Acyclovir. It is created by eHealthMe based on reports of 53,484 people who have side effects when taking Acyclovir from the FDA, and is updated regularly.

What is Acyclovir?

Acyclovir has active ingredients of acyclovir. It is often used in herpes simplex. eHealthMe is studying from 54,961 Acyclovir users. Check the latest studies of Acyclovir.

What is Joint contracture?

Joint contracture (a permanent shortening of a muscle or joint) is found to be associated with 337 drugs and 651 conditions by eHealthMe. Check the latest studies of Joint contracture.

On Jul, 07, 2026

53,484 people reported to have side effects when taking Acyclovir.
Among them, 21 people (0.04%) have Joint contracture.

Could Acyclovir cause Joint contracture?

Among these 21 people:

What is the gender of people who have Joint contracture when taking Acyclovir? *

  • female: 33.33 %
  • male: 66.67 %

What is the age of people who have Joint contracture when taking Acyclovir? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 28.57 %
  • 50-59: 4.76 %
  • 60+: 66.67 %

What are other drugs people take besides Acyclovir? *

  1. Omniscan: 19 people, 90.48%
  2. Magnevist: 19 people, 90.48%
  3. Coumadin: 18 people, 85.71%
  4. Protonix: 11 people, 52.38%
  5. Renagel: 10 people, 47.62%
  6. Cyclosporine: 9 people, 42.86%
  7. Plavix: 9 people, 42.86%
  8. Zocor: 9 people, 42.86%
  9. Lantus: 8 people, 38.10%
  10. Phoslo: 8 people, 38.10%

What are other side effects people have besides Joint contracture? *

  1. Nephrogenic Systemic Fibrosis (involves fibrosis of skin, joints, eyes due to kidney disease): 19 people, 90.48%
  2. Joint Range Of Motion Decreased (disease of joint movement): 18 people, 85.71%
  3. Skin Hypertrophy (skin cells enlarges): 18 people, 85.71%
  4. Skin Induration (an abnormally hard spot or area on the skin): 18 people, 85.71%
  5. Skin Tightness: 18 people, 85.71%
  6. Pain: 15 people, 71.43%
  7. Skin Exfoliation (removal of the oldest dead skin cells): 15 people, 71.43%
  8. Rashes (redness): 13 people, 61.90%
  9. Oedema Peripheral (superficial swelling): 10 people, 47.62%
  10. Pain In Extremity: 10 people, 47.62%

What are the existing conditions these people have? *

  1. Nuclear Magnetic Resonance Imaging Brain: 8 people, 38.10%
  2. Nuclear Magnetic Resonance Imaging Abdominal: 7 people, 33.33%
  3. Immunodeficiency Disorders: 2 people, 9.52%
  4. Colon Cancer Metastatic (cancer of colon spreads to other part of body): 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Acyclovir and have Joint contracture?

- Check whether Joint contracture 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 Acyclovir:

Joint contracture treatments and more:

How severe was Joint contracture and when was it recovered:

Expand to all the drugs that have ingredients of acyclovir:

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 Acyclovir:

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 Joint contracture:

Browse all the conditions that are associated with Joint contracture:

Related publications that referenced our studies

How the study uses the data?

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