Vyvgart and Famotidine drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Vyvgart (efgartigimod alfa) and Famotidine (famotidine). Common drug interactions include pneumonia among females and arthralgia among males.
The phase IV clinical study analyzes what interactions people have when they take Vyvgart and Famotidine. It is created by eHealthMe based on reports of 29 people who take the same drugs from the FDA, and is updated regularly.
What is Vyvgart?
Vyvgart has active ingredients of efgartigimod alfa. eHealthMe is studying from 3,254 Vyvgart users. Check the latest studies of Vyvgart.
What is Famotidine?
Famotidine has active ingredients of famotidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 83,421 Famotidine users. Check the latest studies of Famotidine.
29 people who take Vyvgart and Famotidine together, and have interactions are studied.

What are the common drug interactions of Vyvgart and Famotidine, by gender? *:
female:
- Pneumonia
- Dyspnoea (difficult or laboured respiration)
- Pyrexia (fever)
- Abdominal discomfort
- Arthralgia (joint pain)
- Asthenia (weakness)
- Back pain
- Contusion (a type of hematoma of tissue in which capillaries)
- Diarrhoea
- Fatigue (feeling of tiredness)
male:
- Arthralgia (joint pain)
- Balance disorder
- Dysstasia (difficulty in standing)
- Hypophagia (reduced food intake)
- Hypoxia (low oxygen in tissues)
- Pneumonitis (inflammation of the walls of the alveoli in the lungs)
- Sleep disorder
- Swelling
What are the common drug interactions of Vyvgart and Famotidine, by age (0-1 to 60+)? *:
0-1:
n/a
2-9:
n/a
10-19:
n/a
20-29:
n/a
30-39:
n/a
40-49:
- Renal failure (kidney dysfunction)
50-59:
- Pneumonia
- Abdominal pain upper
- Anaemia (lack of blood)
- Lumbar vertebral fracture
- Pleural effusion (water on the lungs)
- Pyrexia (fever)
- Rib fracture
- Chest discomfort
- Disease progression
- Dyspnoea (difficult or laboured respiration)
60+:
- Arthralgia (joint pain)
- Abdominal discomfort
- Hospitalisation
- Hypoacusis (loss of hearing)
- Hypotension (abnormally low blood pressure)
- Muscular weakness (muscle weakness)
- Nervousness
- Neuropathy peripheral (surface nerve damage)
- Oedema (fluid collection in tissue)
- Oedema peripheral (superficial swelling)
What are the existing conditions these people have? *
- Myasthenia Gravis (a chronic condition that causes muscles to tire and weaken easily): 27 people, 93.10%
- Back Pain: 3 people, 10.34%
- Dyspnea (difficult or laboured breathing): 2 people, 6.90%
- Diffuse Large B-Cell Lymphoma Stage Iv (cancer of b cells, a type of white blood cell-stage iv): 2 people, 6.90%
- Bulbar Palsy: 2 people, 6.90%
* Approximation only. Some reports may have incomplete information.
Do you take Vyvgart and Famotidine?
- 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:
- Vyvgart (3,254 reports)
- Famotidine (83,421 reports)
Browse all drug interactions of Vyvgart and Famotidine:
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 zSub-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 Vyvgart:
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 zBrowse all side effects of Famotidine:
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 zBrowse all interactions between Vyvgart 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 zBrowse all interactions between Famotidine 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 zHow the study uses the data?
The study uses data from the FDA. It is based on efgartigimod alfa and famotidine (the active ingredients of Vyvgart and Famotidine, respectively), and Vyvgart and Famotidine (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.
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