Ampyra and Breast swelling - a phase IV clinical study of FDA data


Breast swelling is found among people who take Ampyra, especially for people who are female, 60+ old.

The phase IV clinical study analyzes which people take Ampyra and have Breast swelling. It is created by eHealthMe based on reports of 75,087 people who have side effects when taking Ampyra 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 Dec, 06, 2022

75,087 people reported to have side effects when taking Ampyra.
Among them, 6 people (0.01%) have Breast swelling.

What is Ampyra?

Ampyra has active ingredients of dalfampridine. It is often used in multiple sclerosis. eHealthMe is studying from 75,227 Ampyra users for its effectiveness, alternative drugs and more.

What is Breast swelling?

Breast swelling is found to be associated with 752 drugs and 439 conditions by eHealthMe.

Number of Ampyra and Breast swelling reports submitted per year:

Could Ampyra cause Breast swelling?

Gender of people who have Breast swelling when taking Ampyra *:

  • female: 100 %
  • male: 0.0 %

Age of people who have Breast swelling when taking Ampyra *:

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

Common drugs people take besides Ampyra *:

  1. Vitamin D: 2 people, 33.33%
  2. Zoloft: 1 person, 16.67%
  3. Vitamin C: 1 person, 16.67%
  4. Vitamin B12: 1 person, 16.67%
  5. Tylenol: 1 person, 16.67%
  6. Synthroid: 1 person, 16.67%
  7. Rebif: 1 person, 16.67%
  8. Mirena: 1 person, 16.67%
  9. Miralax: 1 person, 16.67%
  10. Extavia: 1 person, 16.67%

Common side effects people have besides Breast swelling *:

  1. Weight Increased: 2 people, 33.33%
  2. Peripheral Swelling: 2 people, 33.33%
  3. Abdominal Distension: 2 people, 33.33%
  4. Breast Pain: 2 people, 33.33%
  5. Abdominal Discomfort: 2 people, 33.33%
  6. Rashes (redness): 1 person, 16.67%
  7. Drug Ineffective: 1 person, 16.67%
  8. Gait Disturbance: 1 person, 16.67%
  9. Fever: 1 person, 16.67%
  10. Feeling Abnormal: 1 person, 16.67%

Common conditions people have *:

  1. Gait Disturbance: 3 people, 50.00%

* Approximation only. Some reports may have incomplete information.

Do you take Ampyra and have Breast swelling?

Check whether Breast swelling 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 studies

How severe was Breast swelling and when was it recovered:

Expand to all the drugs that have ingredients of dalfampridine:

Alternative drugs to, pros and cons of Ampyra:

Common Ampyra side effects:

Browse all side effects of Ampyra:

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

Breast swelling treatments and more:

COVID vaccines that are related to Breast swelling:

Common drugs associated with Breast swelling:

All the drugs that are associated with Breast swelling:

Common conditions associated with Breast swelling:

All the conditions that are associated with Breast swelling:

How the study uses the data?

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