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Find helpful information and videos and support for Tyvaso, a prescription medicine approved for adults with pulmonary arterial hypertension (PAH) (WHO Group 1).

Starting Tyvaso

Beginning a new treatment can feel challenging at first. But don't worry, just take it step by step. You'll receive help right from the start.
Once your doctor decides Tyvaso is right for you, he or she will put in a referral or application for your Tyvaso prescription to a Specialty Pharmacy Services (SPS) provider. Your SPS provider will work with your insurance company and healthcare team to process the Tyvaso referral and arrange for the Tyvaso Inhalation System to be delivered to your home.

What exactly is a

Specialty Pharmacy Services Provider?

Specialty Pharmacy Services (SPS) providers are different from your local pharmacy. In addition to arranging delivery of your Tyvaso Inhalation System, they will work closely with you and your healthcare team to get you started on Tyvaso and be sure you are comfortable using the Tyvaso device. Your SPS provider will provide personalized education and information, instructions on using Tyvaso, and continued guidance and support. Don’t hesitate to call them with questions 24/7.
The Tyvaso Inhalation System is available only through the following SPS providers:
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CVS Specialty
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What comes


Here’s what to expect while you wait for treatment to begin:


Your doctor will put in an application, or referral, for your Tyvaso prescription with an SPS provider, who will work with you and your healthcare team to coordinate many aspects of your care.


Once your SPS provider receives the referral, they will process it with your insurance company. Your SPS provider can also help you understand your coverage and benefits. And, if you don't have insurance, they can help you explore other financial assistance options.


Your SPS provider will contact you to review your coverage and reimbursement information. Once approved, they will work with you to coordinate delivery of Tyvaso.


Prior to your initial start date, your SPS nurse will contact you to schedule an appointment at your home or doctor's office to teach you how to use Tyvaso. Your Tyvaso system and supplies will be delivered a couple of days before your appointment.


Your SPS nurse will arrange follow up visits to support you as you get used to using Tyvaso. Every 4 weeks, you'll receive a refill shipment of supplies.
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Where can I find

Additional support?

Talk with an experienced Tyvaso patient
No one understands like someone who also has PAH and is already taking Tyvaso. Get one-on-one support from a current Tyvaso patient who has volunteered their time to share their experience.
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Sign up for the Tyvaso Support Program
No matter where you are on your journey with PAH, the Tyvaso Support Program can help. You’ll receive email newsletters with new information about PAH and Tyvaso, along with useful suggestions and tips.
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FAQs about Tyvaso
A day with Tyvaso
How Tyvaso works?
Taking Tyvaso–how it fits into your day

Important Safety Information for Tyvaso

Before you take Tyvaso, tell your healthcare provider about all of your medical conditions, including if you:

  • Have lung disease, such as asthma or chronic obstructive pulmonary disease (COPD)
  • Have a lung infection
  • Have liver or kidney problems
  • Have low blood pressure
  • Have bleeding problems
  • Are pregnant or plan to become pregnant. It is not known if Tyvaso will harm your unborn baby.
  • Are breast-feeding or plan to breast-feed. It is not known if Tyvaso passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby during treatment with Tyvaso.

Tell your healthcare provider about all the medicines you take , including prescription and over-the-counter medicines, vitamins, and herbal supplements. Tyvaso and other medicines may affect each other.

Especially tell your healthcare provider if you take:

  • Medicines used to treat high blood pressure or heart disease
  • Medicines that decrease blood clotting (anticoagulants)
  • Water pills (diuretics)
  • Gemfibrozil (Lopid) or rifampin (Rimactane, Rifadin, Rifamate, Rifater)

What are the possible side effects of Tyvaso?

Tyvaso can cause serious side effects, including:

  • Low blood pressure (symptomatic hypotension). If you have low blood pressure, Tyvaso may lower your blood pressure more
  • Bleeding problems. Tyvaso may increase the risk of bleeding in people who take blood thinners (anticoagulants)

The most common side effects of Tyvaso are cough, headache, throat irritation and pain, nausea, reddening of the face and neck (flushing), fainting or loss of consciousness, dizziness, and diarrhea. These are not all the possible side effects of Tyvaso. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at www.fda.gov/MedWatch or call 1-800-FDA-1088.

What is Tyvaso?

Tyvaso (treprostinil) is a prescription medicine used in adults to treat pulmonary arterial hypertension (PAH; WHO Group I), which is high blood pressure in the arteries of your lungs. Tyvaso can improve the ability to exercise. Your ability to exercise decreases 4 hours after taking Tyvaso. It is not known if Tyvaso is safe and effective in children under 18 years of age.


Please see the Full Prescribing Information, Patient Product Information, and the Tyvaso Inhalation System Instructions for Use manual.

For additional information about Tyvaso, visit www.tyvaso.com or call 1-877-UNITHER (1-877-864-8437).

This information is provided for an informational purpose and is not intended as treatment advice. Patients should consult a healthcare professional for treatment advice.

The information contained in this section of the site is clinical in nature and specifically created for healthcare professionals. If you are not a US healthcare professional, please click CLOSE to return to the consumer section of the site.
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