Differin and Roundback - a phase IV clinical study of FDA data

Summary:

Roundback is reported as a side effect among people who take Differin (adapalene), especially for people who are female, also take Forteo, and have Osteoporosis.

The phase IV clinical study analyzes which people have Roundback when taking Differin. It is created by eHealthMe based on reports of 5,708 people who have side effects when taking Differin from the FDA, and is updated regularly.

What is Differin?

Differin has active ingredients of adapalene. It is often used in acne. eHealthMe is studying from 5,740 Differin users. Check the latest studies of Differin.

What is Roundback?

Roundback (abnormal rearward curvature of the spine) is found to be associated with 1,116 drugs and 732 conditions by eHealthMe. Check the latest studies of Roundback.

On May, 15, 2026

5,708 people reported to have side effects when taking Differin.
Among them, 18 people (0.32%) have Roundback.

Among these 18 people:

What is the gender of people who have Roundback when taking Differin? *

female: 100 %
male: 0.0 %

What are other drugs people take besides Differin? *

What are other side effects people have besides Roundback? *

Hypovolaemia (a decreased volume of circulating blood in the body): 18 people, 100.00%
Osteomyelitis Chronic (long lasting infection of bone marrow): 18 people, 100.00%
Periodontal Disease (disease that attacks the gum and bone and around the teeth): 18 people, 100.00%
Fall: 18 people, 100.00%
Gastritis (inflammation of stomach): 18 people, 100.00%
Pain: 18 people, 100.00%
Osteoporosis (bones weak and more likely to break): 18 people, 100.00%
Osteopenia (a condition where bone mineral density is lower than normal): 18 people, 100.00%
Osteonecrosis Of Jaw (death of bone of jaw): 18 people, 100.00%
Hepatitis (inflammation of the liver): 18 people, 100.00%

What are the existing conditions these people have? *

Osteoporosis (bones weak and more likely to break): 16 people, 88.89%
Sinus Disorder (disease of sinus): 1 person, 5.56%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 5.56%

* Approximation only. Some reports may have incomplete information.

Do you take Differin and have Roundback?

- Check whether Roundback 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 Differin:

Differin (5,740 reports)

Roundback treatments and more:

Roundback (3,242 reports)

Browse all side effects of Differin:

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 Roundback:

Roundback (1,116 drugs)

Browse all the conditions that are associated with Roundback:

Roundback (732 conditions)

How the study uses the data?

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