Penicillin and Gastritis - a phase IV clinical study of FDA data

Summary:

Gastritis is reported as a side effect among people who take Penicillin (penicillin g potassium), especially for people who are female, 40-49 old, have been taking the drug for < 1 month also take Gilenya, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Gastritis when taking Penicillin. It is created by eHealthMe based on reports of 7,964 people who have side effects when taking Penicillin from the FDA, and is updated regularly.

What is Penicillin?

Penicillin has active ingredients of penicillin g potassium. It is often used in strep throat. eHealthMe is studying from 8,567 Penicillin users. Check the latest studies of Penicillin.

What is Gastritis?

Gastritis (inflammation of stomach) is found to be associated with 1,718 drugs and 1,916 conditions by eHealthMe. Check the latest studies of Gastritis.

On Jul, 20, 2026

7,964 people reported to have side effects when taking Penicillin.
Among them, 38 people (0.48%) have Gastritis.

Among these 38 people:

How long have people been on Penicillin when they have Gastritis? *

What is the gender of people who have Gastritis when taking Penicillin? *

female: 93.75 %
male: 6.25 %

What is the age of people who have Gastritis when taking Penicillin? *

What are other drugs people take besides Penicillin? *

What are other side effects people have besides Gastritis? *

Swallowing Difficulty: 19 people, 50.00%
Nausea (feeling of having an urge to vomit): 17 people, 44.74%
Drug Hypersensitivity: 17 people, 44.74%
Pain: 17 people, 44.74%
Diarrhea: 15 people, 39.47%
Weakness: 15 people, 39.47%
Stress And Anxiety: 14 people, 36.84%
Fatigue (feeling of tiredness): 13 people, 34.21%
Dyspnea (difficult or laboured breathing): 13 people, 34.21%
Intervertebral Disc Protrusion (spinal disc protrusion): 12 people, 31.58%

What are the existing conditions these people have? *

Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 14 people, 36.84%
Pain: 11 people, 28.95%
Agitation (state of anxiety or nervous excitement): 7 people, 18.42%
Facial Pain: 7 people, 18.42%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 7 people, 18.42%
Neuralgia (pain in one or more nerves): 7 people, 18.42%
Nervousness: 7 people, 18.42%
High Blood Pressure: 5 people, 13.16%
Histiocytosis (a blood disease characterized by an abnormal multiplication of macrophages): 4 people, 10.53%
Constipation: 4 people, 10.53%

* Approximation only. Some reports may have incomplete information.

Do you take Penicillin and have Gastritis?

- Check whether Gastritis 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 Penicillin:

Penicillin (8,567 reports)

Gastritis treatments and more:

Gastritis (55,650 reports)

Browse all side effects of Penicillin:

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 Gastritis:

Gastritis (1,718 drugs)

Browse all the conditions that are associated with Gastritis:

Gastritis (1,916 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on penicillin g potassium (the active ingredients of Penicillin) and Penicillin (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.