The present invention provides the dosage of dosage form treprosinil 0.The sterile fluid composition of 1 mg/mL and 25 mg/mL are formulated as subcutaneous or intravenous injection, these compositions are free of antibiotic antiseptic. Selectively activatable patch pump assembly include a sealing plus glue sawdust-board drug-reservoir contain unit dosage form be described as that position of the method for reducing pain be subcutaneous or vein treprostinil need its subject method, and reduce that stimulation, inflammation or combinations thereof position are subcutaneous or vein treprostinil is in object in need. The present invention also provides pathogenesis (PAH) patients that the method for the treatment of pulmonary hypertension and method are used to treat or reduce its seriousness or reduce pulmonary hypertension to use composition, as described herein.
