Letairis is a prescription medication used to treat pulmonary arterial hypertension (PAH) in adults. It belongs to a class of drugs known as endothelin receptor antagonists, which work by blocking the effects of a naturally occurring substance in the body that constricts blood vessels and increases blood pressure.

PAH is a serious condition that affects the arteries in the lungs and the right side of the heart. It can cause symptoms such as shortness of breath, fatigue, chest pain, and fainting. If left untreated, PAH can lead to heart failure and other complications.

Letairis is typically taken once daily, with or without food. It is important to follow your healthcare provider’s instructions carefully and not to stop taking the medication without consulting them first. Letairis can interact with other medications, so it is important to inform your healthcare provider of all the medications you are taking before starting Letairis.

Like all medications, Letairis can cause side effects. Common side effects may include swelling in the hands or feet, headache, and nasal congestion. In rare cases, Letairis can cause liver problems, so it is important to have regular blood tests to monitor liver function while taking this medication.

If you are prescribed Letairis, it is important to attend regular follow-up appointments with your healthcare provider to monitor your progress and adjust your treatment plan as needed. With proper management and monitoring, Letairis can help improve symptoms and quality of life for individuals with PAH.