SPL Set ID: 4b2ce4aa-4302-49db-9456-c8cf0e034968

Treprostinil Injection is a sterile solution of treprostinil, a prostacyclin mimetic, formulated for subcutaneous or intravenous administration. Treprostinil Injection is supplied in 20 mL multidose vials in four strengths, containing 20 mg, 50 mg, 100 mg, or 200 mg (1 mg/mL, 2.5 mg/mL, 5 mg/mL, or 10 mg/mL) of treprostinil. Each mL also contains 5.3 mg sodium chloride (except for the 10 mg/mL strength which contains 4.0 mg sodium chloride), 3 mg metacresol, 6.3 mg sodium citrate, and Water for Injection. Sodium hydroxide and hydrochloric acid may be added to adjust pH between 6.0 and 7.2. Treprostinil is chemically stable at room temperature and neutral pH. Treprostinil is (1 R ,2 R ,3a S ,9a S )-[[2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-[(3S)-3-hydroxyoctyl]- 1 H -benz[ f ]inden-5-yl]oxy]acetic acid. Treprostinil has a molecular weight of 390.52 and a molecular formula of C 23 H 34 O 5 . The structural formula of treprostinil is: formula