Epoprostenol is a hormone-like substance that occurs naturally in the body. According to drugs.com, it helps control certain functions in the body such as blood pressure and muscle contractions. As for the injection form of Epoprostenol, it is indicated for the treatment of pulmonary arterial hypertension and for improving one’s ability to exercise. Bear in mind that you should not use this medicine if you have congestive heart failure or fluid in your lungs. It is, however, not known if Epoprostenol can harm the fetus, which is why you must tell your doctor that you’re pregnant before using the drug in question. Also don’t forget to consult them in case you’re nursing a baby, because it may not be safe to breastfeed while taking Epoprostenol. As for the common side effects, they include dizziness, headache, irregular heartbeat, and muscle pain. There are, however, other side effects that require immediate medical care such as unusual bleeding, lightheadedness, and shortness of breath. It is worth noting that Epoprostenol is typically injected with an infusion pump, “usually through a permanent central intravenous (IV) catheter placed into a large vein such as in your chest”. Of course, the first dose will be given to you by your healthcare provider, who in turn may teach you how to inject Epoprostenol by yourself at home.