Back to Drug Directory



What is Opsumit used for?

Macitentan is used to treat high blood pressure in the lungs (pulmonary arterial hypertension). This condition is thought to be caused by increased levels of a certain natural substance (endothelin-1). This medication blocks the effects of endothelin-1, which helps decrease the blood pressure in the lungs, and reduces the risk of worsening of symptoms and hospital stays due to the disease.




Pulmonary Hypertension
InsideRx Coupon Icon

Get Opsumit Savings

Compare prices for Opsumit and save up to 80%.

The Savings Card works just like a coupon!

What does Opsumit look like?

View all Opsumit images (1)

Opsumit Frequently Asked Questions

Macitentan must not be used during pregnancy. It may harm an unborn baby. It is important to prevent pregnancy while taking this medication and for 1 month after treatment. Female patients must use reliable birth control during treatment and for 1 month after the last dose. Ask your doctor which forms of birth control to use while taking this medication. Female patients must take a pregnancy test before starting treatment, monthly during treatment, and 1 month after the last dose. If you become pregnant or think you may be pregnant, tell your doctor right away.

For female patients to receive this medication in the United States, they must understand, agree to, and carefully follow the requirements of the Macitentan-Containing Products REMS Program. If you are a female patient that lives in Canada or any other country, consult your doctor and pharmacist for your country's regulations.

IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

Opsumit Dosage and Form Information

10 Mg