Cataflam and Melaena - a phase IV clinical study of FDA data

Summary:

Melaena is reported as a side effect among people who take Cataflam (diclofenac potassium), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Voltaren, and have Fever.

The phase IV clinical study analyzes which people have Melaena when taking Cataflam. It is created by eHealthMe based on reports of 1,750 people who have side effects when taking Cataflam from the FDA, and is updated regularly.

What is Cataflam?

Cataflam has active ingredients of diclofenac potassium. It is often used in pain. eHealthMe is studying from 1,851 Cataflam users. Check the latest studies of Cataflam.

What is Melaena?

Melaena (the passage of black, tarry stools) is found to be associated with 1,305 drugs and 1,475 conditions by eHealthMe. Check the latest studies of Melaena.

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, 20, 2026

1,750 people reported to have side effects when taking Cataflam.
Among them, 11 people (0.63%) have Melaena.

Among these 11 people:

How long have people been on Cataflam when they have Melaena? *

What is the gender of people who have Melaena when taking Cataflam? *

female: 54.55 %
male: 45.45 %

What is the age of people who have Melaena when taking Cataflam? *

What are other drugs people take besides Cataflam? *

What are other side effects people have besides Melaena? *

Haematemesis (vomiting of blood): 3 people, 27.27%
Gastritis (inflammation of stomach): 3 people, 27.27%
Weakness: 2 people, 18.18%
Gastrointestinal Haemorrhage (bleeding gastrointestinal tract): 2 people, 18.18%
Gastric Haemorrhage (bleeding stomach): 2 people, 18.18%
Faeces Discolored: 2 people, 18.18%
Helicobacter Gastritis (inflammation of the inner lining of the stomach caused by helicobacter pylori (h. pylori) a bacterium): 1 person, 9.09%
Haemoglobin Decreased: 1 person, 9.09%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 9.09%
Gastric Ulcer (stomach ulcer): 1 person, 9.09%

What are the existing conditions these people have? *

Joint Pain: 2 people, 18.18%
Inflammation: 2 people, 18.18%
Fever: 2 people, 18.18%
Pharyngitis (inflammation of the pharynx, causing a sore throat): 1 person, 9.09%
Nausea And Vomiting: 1 person, 9.09%
Nasopharyngitis (inflammation of the nasopharynx): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Cataflam and have Melaena?

- Check whether Melaena 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 Cataflam:

Cataflam (1,851 reports)

Melaena treatments and more:

Melaena (29,850 reports)

Browse all side effects of Cataflam:

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 Melaena:

Melaena (1,305 drugs)

Browse all the conditions that are associated with Melaena:

Melaena (1,475 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on diclofenac potassium (the active ingredients of Cataflam) and Cataflam (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.