Revatio (Sildenafil) for Pulmonary Arterial Hypertension: Uses, Dosage, and Safety

Revatio contains sildenafil and is prescribed for pulmonary arterial hypertension (PAH), a serious condition involving elevated pressure in the blood vessels of the lungs. It relaxes pulmonary blood vessels to improve blood flow and may improve exercise capacity in appropriate patients. Revatio is not an erectile dysfunction medicine and must not be substituted with other sildenafil products without specialist direction.

Before deciding whether to buy Revatio, patients need assessment and ongoing care from a clinician experienced in PAH. The Revatio price varies by formulation, quantity, pharmacy, and insurance coverage, but cost must not lead to skipped doses or use of an unverified supplier. Prescription medicines require a valid prescription where applicable.

Indications

Revatio is used for PAH under a specialist-directed treatment plan. Breathlessness, chest pain, fainting, ankle swelling, worsening exercise tolerance, or new palpitations require medical review. Dr. Vallerie McLaughlin, a cardiologist and pulmonary-hypertension specialist, has emphasized risk-based monitoring and individualized treatment for PAH.

Patients with a valid prescription may buy Revatio 20 mg only when this strength and schedule have been selected by the treating clinician.

Dosage

Take Revatio exactly as prescribed. A common tablet regimen is 20 mg three times daily, with doses approximately four to six hours apart, with or without food. Do not increase the dose, take double doses after a missed dose, or change to sildenafil sold for erectile dysfunction. Patients should buy Revatio only from a legitimate pharmacy with a valid prescription.

If a dose is missed, take it when remembered unless it is close to the next dose; do not take two doses together. The Revatio price should not affect specialist follow-up, monitoring, or adherence. Do not stop PAH treatment without medical advice.

Safety Information

Do not use Revatio with organic nitrates, nitric oxide donors, recreational nitrites, or riociguat. These combinations can cause dangerous hypotension. Tell the prescriber about low blood pressure, fluid depletion, heart disease, liver or kidney disease, bleeding problems, retinitis pigmentosa, vision loss, hearing problems, or pulmonary veno-occlusive disease. Revatio may worsen pulmonary edema in pulmonary veno-occlusive disease.

Common effects include headache, flushing, indigestion, muscle pain, nasal symptoms, dizziness, and nosebleeds. Seek urgent care for fainting, chest pain, sudden vision or hearing loss, severe shortness of breath, or an allergic reaction.

Interactions

Strong CYP3A inhibitors such as ritonavir, ketoconazole, and itraconazole can increase sildenafil exposure. Bosentan, rifampin, carbamazepine, phenytoin, alpha-blockers, and blood-pressure medicines may also require specialist review. Do not combine Revatio with Viagra, other sildenafil products, tadalafil, or unregulated sexual-enhancement products.

Patients may buy Revatio only after an interaction review. The Revatio price is secondary to safe dispensing. Discuss the Revatio price with a licensed pharmacy if affordability affects access.

Medical disclaimer: This content is informational and does not replace advice from a licensed healthcare professional. Follow your prescriber’s directions and consult a clinician or pharmacist about Revatio, PAH, dosing, risks, and interactions.