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Letairis (Ambrisentan)

(℞) Prescription Required

Letairis (Ambrisentan) Dosage and Side Effects

Letairis (Ambrisentan) is used to treat pulmonary arterial hypertension (PAH).

Proper Use of this medication

Use Letairis exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not use this medicine in larger or smaller amounts or for longer than recommended.

Before you start treatment with ambrisentan, your doctor may perform blood tests to make sure it is safe for you to take this medicine. Your blood will need to be tested often during treatment.

Ambrisentan is usually taken once daily. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Ambrisentan can be taken with or without food. Take the medicine at the same time each day.

Do not crush, chew, or split the tablet. Swallow the pill whole.

Store at room temperature away from moisture and heat. Keep this medicine in its original container.

Side Effects

Side effects of Letairis (Ambrisentan) include:

  • headache;
  • stomach pain, vomiting, constipation;
  • stuffy nose, sinus pain, sore throat; or.
  • warmth, redness, or tingly feeling under your skin.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Interactions with this medication

Warnings and Precautions

Ambrisentan can harm an unborn baby or cause birth defects. Do not use if you are pregnant.

If you are a woman of child-bearing potential, you will be required to use two forms of birth control to prevent pregnancy during your treatment, and for at least 1 month after your treatment ends (unless you have had a tubal ligation or are using a copper IUD).

You should not use this medication if you have idiopathic pulmonary fibrosis (IPF).

Ambrisentan is available only from a certified pharmacy under a special program.

About this medication

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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