"The European Medicines Agency's Committee for Medicinal Products for Human Use (CHMP) has recommended the marketing of selexipag (Uptravi, Actelion Registration Ltd) for the treatment of adults with pulmonary arterial hypertension (PAH)./"...
(treprostinil) Inhalation Solution
Tyvaso is a sterile formulation of treprostinil intended for administration by oral inhalation using the Tyvaso Inhalation System. Tyvaso is supplied in 2.9 mL low density polyethylene (LDPE) ampules, containing 1.74 mg treprostinil (0.6 mg/mL). Each ampule also contains 18.9 mg sodium chloride, 18.3 mg sodium citrate, 0.58 mg sodium hydroxide, 11.7 mg 1 N hydrochloric acid, and water for injection. Sodium hydroxide and hydrochloric acid may be added to adjust pH between 6.0 and 7.2.
Treprostinil is (1R,2R,3aS,9aS)-[[2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-[(3S)-3-hydroxyoctyl]-1Hbenz[f]inden-5-yl]oxy]acetic acid. Treprostinil has a molecular weight of 390.51 and a molecular formula of C23H34O5.
The structural formula of treprostinil is:
What are the possible side effects of treprostinil inhalation (Tyvaso, Tyvaso Refill Kit, Tyvaso Starter Kit)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
- new or worsening PAH symptoms such as feeling short of breath (even with mild exertion), tiredness, chest pain, and pale skin;
- feeling like you might pass out;
- fever, chills, cough with yellow or green mucus, stabbing chest pain, wheezing;
- unusual bleeding such as...
What are the precautions when taking treprostinil inhalation solution (Tyvaso)?
Before using treprostinil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: low blood pressure, kidney problems, liver problems, bleeding problems, other breathing problems (such as asthma).
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription...
Last reviewed on RxList: 6/4/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Tyvaso Information
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