Ambrisentan: Treatment for Pulmonary Arterial Hypertension (PAH)
What is Ambrisentan?
Ambrisentan is a prescription medication used to treat Pulmonary Arterial Hypertension (PAH), a condition characterized by high blood pressure in the arteries that carry blood from the heart to the lungs. By relaxing and widening the blood vessels, Ambrisentan helps improve blood flow, reducing the heart’s workload and enhancing patients’ quality of life.
Ambrisentan belongs to a class of drugs called endothelin receptor antagonists (ERAs), which block endothelin, a substance in the blood that causes blood vessels to narrow. This medication is often prescribed to help patients manage symptoms, slow disease progression, and improve exercise capacity.
Ambrisentan helps to:
Improve exercise capacity
Delay clinical worsening of PAH
Reduce the need for hospitalization
Indications for Use:
Ambrisentan is approved for:
Adults with WHO Group 1 PAH to enhance exercise ability and delay disease progression.
Combination therapy with tadalafil to further reduce the risks associated with PAH.
It’s essential to note that Ambrisentan is not recommended for patients with idiopathic pulmonary fibrosis (IPF).


Risk Evaluation and Mitigation Strategy (REMS)
Due to the risk of embryo-fetal toxicity, Ambrisentan is available only through a REMS program. This program ensures that:
Prescribers and pharmacies are certified to prescribe and dispense Ambrisentan.
Female patients of reproductive potential undergo monthly pregnancy testing.
Patients are educated about the risks associated with the medication.
White Card Pharmacy is fully certified certified under the Ambrisentan REMS program, ensuring safe and compliant dispensing of the medication in multiple states.
Dosage and Administration:
Ambrisentan is available in tablet form, typically in 5 mg and 10 mg dosages. The prescribing physician will determine the appropriate dose based on individual patient needs. It’s crucial to:
Take the medication consistently at the same time each day.
Not split, crush, or chew the tablets.
Follow the prescribed regimen without making changes unless directed by a healthcare provider.
Potential Side Effects:
While many patients tolerate Ambrisentan well, some may experience side effects, including:
Peripheral edema (swelling of the legs and ankles)
Nasal congestion
Flushing
Headache
Patients should report any unusual or severe symptoms to their healthcare provider promptly.
Insurance and Financial Assistance
Understanding the costs associated with PAH treatment is vital. White Card Pharmacy assists patients by:
Coordinating with insurance providers to determine coverage.
Providing information on co-pay assistance programs, such as the Letairis Co-Pay Coupon Program, which may reduce out-of-pocket expenses for eligible patients.
Guiding uninsured or underinsured patients to potential financial support resources.
For more details on financial assistance, patients can contact our support team.
Why Choose White Card Pharmacy?
Who is Considered an EEOICPA Survivor?
Specialized Expertise: Our team is trained in managing PAH treatments and understands the nuances of medications like Ambrisentan.
REMS Certified: White Card Pharmacy adheres strictly to REMS requirements, ensuring patient safety.
Personalized Support: From insurance coordination to medication counseling, we provide comprehensive support throughout your treatment journey.
Convenient Services: Benefit from home delivery options and timely refill reminders.