Head-to-head comparisons of medication uses, side effects, warnings, and more.
Uptravi (selexipag) and Letairis (ambrisentan) are both medications used to treat pulmonary arterial hypertension (PAH), but they work in different ways. Uptravi is a prostacyclin agonist that helps relax blood vessels in the lungs, making it easier for your heart to pump blood. It is taken twice a day, either as an oral tablet or as an intravenous injection. On the other hand, Letairis is an endothelin receptor antagonist that blocks a protein called endothelin to relax blood vessels. It is taken once a day and is available as a lower-cost generic. One major difference is that Letairis can cause severe harm to unborn babies, so it is only available through a special REMS program for people who can get pregnant. Uptravi does not have this restriction. Additionally, Uptravi can cause side effects like headache and diarrhea, while Letairis commonly causes swelling in the arms or legs.
Uptravi (selexipag) is a prostacyclin agonist that's used in adults to treat pulmonary arterial hypertension (PAH), which is high blood pressure in the lungs. This medication can help prevent PAH from getting worse and lower the risk for hospitalization. Uptravi (selexipag) is a tablet that's taken by mouth twice per day. It's also available as an intravenous (IV) injection for people who can't take the medication by mouth. The most common side effects include headache, diarrhea, and nausea.
Ambrisentan, also known by its brand name Letairis, is a medication used for pulmonary arterial hypertension (PAH), or high blood pressure in the blood vessels of the lungs. This medication is available as a lower-cost generic. The usual dose is one tablet daily. Ambrisentan (Letairis) is generally well-tolerated, though the most common side effect is swelling in the arms or legs. It also has a risk of causing severe and life-threatening harm to unborn babies, so the medication is only available through the Ambrisentan REMS program for people who can get pregnant.
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