Letairis® (ambrisentan) is a prescription medicine to treat pulmonary arterial hypertension (PAH), which is high blood pressure in the arteries of your lungs. LETAIRIS can improve your ability to exercise and it can help slow down the worsening of your physical condition and symptoms.
Starting LETAIRIS

LETAIRIS is only available through a Certified Specialty Pharmacy

When you enroll in LEAP you will choose a Certified Specialty Pharmacy. Your Certified Specialty Pharmacy will ship LETAIRIS to your home each month. Before sending you your monthly refill, a representative from the Certified Specialty Pharmacy will call you to make sure you have completed your monthly laboratory tests and to review important information about LETAIRIS.

LETAIRIS is available through the following Certified Specialty Pharmacies*:

Pharmacies
*The list may be updated without notice.

IMPORTANT SAFETY INFORMATION

BOXED WARNING

Because of the risk of birth defects, LETAIRIS is available only through a restricted program called the LETAIRIS Education and Access Program (LEAP). To receive LETAIRIS, you must talk to your doctor, understand the benefits and risks of LETAIRIS, and agree to all of the instructions in the LEAP program.

Serious birth defects: LETAIRIS can cause serious birth defects if taken during pregnancy. Women must not be pregnant when they start taking LETAIRIS or become pregnant during treatment. Women who are able to get pregnant must have a negative pregnancy test before beginning treatment with LETAIRIS and each month during treatment. Your doctor will decide when to do the test, depending on your menstrual cycle. Women who are able to get pregnant must use two acceptable forms of birth control, during LETAIRIS treatment and for one month after stopping LETAIRIS. If you have had a tubal sterilization or have an IUD, these methods can be used alone and no other form of birth control is needed. Talk with your doctor or gynecologist (a doctor who specializes in female reproduction) to find out about how to prevent pregnancy. Do not have unprotected sex. Talk to your doctor or pharmacist right away if you have unprotected sex or if you think your birth control has failed. Your doctor may tell you to use emergency birth control. Tell your doctor right away if you miss a menstrual period or think you may be pregnant.

Please see patient Medication Guide and full prescribing information, including boxed WARNING.