Penicillin v potassium and Rashes - a phase IV clinical study of FDA data

Summary:

Rashes is reported as a side effect among people who take Penicillin v potassium (penicillin v potassium), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Prednisone, and have Psoriasis.

The phase IV clinical study analyzes which people have Rashes when taking Penicillin v potassium. It is created by eHealthMe based on reports of 1,039 people who have side effects when taking Penicillin v potassium from the FDA, and is updated regularly.

What is Penicillin v potassium?

Penicillin v potassium has active ingredients of penicillin v potassium. It is often used in tooth abscess. eHealthMe is studying from 1,077 Penicillin v potassium users. Check the latest studies of Penicillin v potassium.

What is Rashes?

Rashes (redness) is found to be associated with 3,715 drugs and 6,215 conditions by eHealthMe. Check the latest studies of Rashes.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 30, 2026

1,039 people reported to have side effects when taking Penicillin v potassium.
Among them, 49 people (4.72%) have Rashes.

Could Penicillin v potassium cause Rashes?

Among these 49 people:

How long have people been on Penicillin v potassium when they have Rashes? *

What is the gender of people who have Rashes when taking Penicillin v potassium? *

female: 64.58 %
male: 35.42 %

What is the age of people who have Rashes when taking Penicillin v potassium? *

What are other drugs people take besides Penicillin v potassium? *

What are other side effects people have besides Rashes? *

Itching: 12 people, 24.49%
Pain: 11 people, 22.45%
Drug Hypersensitivity: 11 people, 22.45%
Drug Intolerance (drug sensitivity): 10 people, 20.41%
Psoriasis (immune-mediated disease that affects the skin): 9 people, 18.37%
Pneumonia: 9 people, 18.37%
Respiratory Acidosis (respiratory failure or ventilatory failure, causes the ph of blood and other bodily fluids to decrease): 8 people, 16.33%
Blood Creatinine Increased: 8 people, 16.33%
Discomfort: 8 people, 16.33%
Hypersensitivity: 8 people, 16.33%

What are the existing conditions these people have? *

Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 8 people, 16.33%
Psoriasis (immune-mediated disease that affects the skin): 8 people, 16.33%
Thrombophlebitis (swelling (inflammation) of a vein caused by a blood clot): 7 people, 14.29%
Multiple Myeloma (cancer of the plasma cells): 4 people, 8.16%
Graft Versus Host Disease (the donated bone marrow or stem cells view the recipient's body as foreign, and the donated cells/bone marrow attack the body): 3 people, 6.12%
Pain: 3 people, 6.12%
Immunodeficiency Common Variable: 3 people, 6.12%
Arthritis Infective (purulent invasion of a joint by an infectious agent which produces arthritis): 2 people, 4.08%
Asthma: 2 people, 4.08%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 4.08%

* Approximation only. Some reports may have incomplete information.

Do you take Penicillin v potassium and have Rashes?

- Check whether Rashes 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 v potassium:

Penicillin v potassium (1,077 reports)

Rashes treatments and more:

Rashes (702,909 reports)

Browse all side effects of Penicillin v potassium:

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 Rashes:

Rashes (3,715 drugs)

Browse all the conditions that are associated with Rashes:

Rashes (6,215 conditions)

How the study uses the data?

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