Treprostinil
Tyvaso (treprostinil) is an inhaled prostacyclin analog used to treat pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD). It is administered via a specialized nebulizer and works by relaxing blood vessels in the lungs, improving blood flow and exercise capacity in affected patients.
Tyvaso is an inhaled medication for pulmonary hypertension that helps improve breathing and exercise ability by relaxing lung blood vessels.
Key facts at a glance
- RxNorm
- 857796
- Generic
- Tyvaso
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of pulmonary arterial hypertension (PAH) in WHO Group 1 patients to improve exercise capacity, and also approved for pulmonary hypertension associated with interstitial lung disease (PH-ILD) in WHO Group 3 to improve exercise ability.
As a prostacyclin analog, Tyvaso causes vasodilation of pulmonary and systemic arteries, reducing pulmonary vascular resistance and improving blood flow through the lungs.
Administered four times daily via a specific nebulizer device. Common side effects include cough, headache, throat irritation, and nausea. Patients should not stop taking abruptly. Requires proper training on inhalation technique and device use.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy