Opsumit and Pulmonary function test decreased - a phase IV clinical study of FDA data

Summary:

Pulmonary function test decreased is reported as a side effect among people who take Opsumit (macitentan), especially for people who are female, 50-59 old, have been taking the drug for 1 - 6 months also take Adcirca, and have Primary pulmonary hypertension.

The phase IV clinical study analyzes which people have Pulmonary function test decreased when taking Opsumit. It is created by eHealthMe based on reports of 67,913 people who have side effects when taking Opsumit from the FDA, and is updated regularly.

What is Opsumit?

Opsumit has active ingredients of macitentan. eHealthMe is studying from 67,926 Opsumit users. Check the latest studies of Opsumit.

What is Pulmonary function test decreased?

Pulmonary function test decreased is found to be associated with 469 drugs and 497 conditions by eHealthMe. Check the latest studies of Pulmonary function test decreased.

On Jul, 18, 2026

67,913 people reported to have side effects when taking Opsumit.
Among them, 38 people (0.06%) have Pulmonary function test decreased.

Could Opsumit cause Pulmonary function test decreased?

Among these 38 people:

How long have people been on Opsumit when they have Pulmonary function test decreased? *

What is the gender of people who have Pulmonary function test decreased when taking Opsumit? *

female: 89.47 %
male: 10.53 %

What is the age of people who have Pulmonary function test decreased when taking Opsumit? *

What are other drugs people take besides Opsumit? *

What are other side effects people have besides Pulmonary function test decreased? *

Dyspnea (difficult or laboured breathing): 22 people, 57.89%
Dyspnea Exertional: 20 people, 52.63%
Fatigue (feeling of tiredness): 20 people, 52.63%
Chest Pain: 18 people, 47.37%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 17 people, 44.74%
Weakness: 15 people, 39.47%
Nasal Congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels): 14 people, 36.84%
Headache (pain in head): 13 people, 34.21%
Nausea (feeling of having an urge to vomit): 13 people, 34.21%
Oedema Peripheral (superficial swelling): 13 people, 34.21%

What are the existing conditions these people have? *

Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 31 people, 81.58%
Pulmonary Hypertension (increase in blood pressure in the lung artery): 5 people, 13.16%
Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 2 people, 5.26%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 5.26%

* Approximation only. Some reports may have incomplete information.

Do you take Opsumit and have Pulmonary function test decreased?

- Check whether Pulmonary function test decreased 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 Opsumit:

Opsumit (67,926 reports)

Browse all side effects of Opsumit:

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Browse all the drugs that are associated with Pulmonary function test decreased:

Pulmonary function test decreased (469 drugs)

Browse all the conditions that are associated with Pulmonary function test decreased:

Pulmonary function test decreased (497 conditions)

How the study uses the data?

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