Remodulin (treprostinil) is another treatment for PH that can be delivered in three ways: by IV through the veins, or subcutaneously (under the skin), or by inhalation (called Tyvaso). There are also trials that are being conducted right now for oral Remodulin, and hopefully that will be approved at some point as another way to use this med. Depending on the dosage a patient is given, Remodulin can cost at least $100,000 a year.
If I were to need another drug added to the regimen of pills I'm taking every day to treat my PH symptoms, I would probably ask my doctors about adding Tyvaso. Once again, the IV treatment would be risky. The huge drawback with the subq version of Remodulin is the pain. I have known many PHers who just can't bear the pain that goes along with that way of using Remodulin. So I'm not sure I could do it, either! But the inhaled version seems to be much easier, so I would go along with that IF I were to need something more.