Subcutaneous (sub-Q) treprostinil is a potent medication to treat pulmonary arterial hypertension, a type of high blood pressure in the lungs that affects heart function. Sub-Q treprostinil works by relaxing the blood vessels in the lungs, which decreases pressure and improves heart function.
How it’s administered
Sub-Q treprostinil is delivered as a continuous infusion through a small plastic catheter underneath the skin. The catheter is attached to a thin tube that goes to a syringe in the pump.
The infusion is controlled by a small pump called a CADD MS3. The pump is about the size of a pager. It continuously delivers the medication in small amounts. The pump can fit easily in pants pockets, be clipped to a belt or placed in a fanny pack or purse.
It is critical that this medication remain connected and is continuously delivered. The pump should NEVER be stopped or removed. The pump rate should NEVER be altered.