
UNDERSTANDING
PAH
What Is PAH?
People with pulmonary arterial hypertension (PAH) have an imbalance of 1 or more of 3 natural substances, causing the blood vessels in their lungs to become narrowed. When these 3 substances are out of balance, it is harder to keep blood flowing through the lungs and this causes symptoms of PAH, such as shortness of breath and fatigue when doing activities.
There are medicines that treat each of those 3 imbalances, or pathways, associated with PAH. Each PAH medicine targets only 1 of those pathways.


Healthy vessel in the lungs
Vessel with PAH in the lungs

What Is Prostacyclin? [pra·stuh·si·klin]
Prostacyclin is one of the pathways associated with PAH. Prostacyclin helps ensure blood vessels are healthy and stay open. People who have PAH may not produce enough prostacyclin in their lungs.
TYVASO Helps to Replace the Natural Prostacyclin You May Be Missing
TYVASO mimics some of the effects of natural prostacyclin, helping to open up blood vessels and keep the blood flowing through your lungs.
You can take it out of your pocket or your purse, put a new cartridge in, take a breath, and you’re on your way.
– TYVASO Patient Discussing TYVASO DPI
Individual results may vary.

How Can TYVASO Help Me?
TYVASO may help you do more in your day and do what matters most.
Device Options Are Available
You can take TYVASO in 1 of 2 ways—TYVASO DPI and the TYVASO nebulizer.