Pirfenidone
Pirfenidone 267MG
What is Pirfenidone?
Pirfenidone is a medication used to treat idiopathic pulmonary fibrosis, a condition that causes scarring in the lungs. It helps by blocking certain natural substances in the body that contribute to this scarring.Side Effects
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Diarrhea, nausea, vomiting, heartburn, stomach pain or upset
Warnings
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, or stomach or bowel problems.
- This medicine may cause the following problems:Liver problemsStomach or bowel problemsSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, and drug reaction with eosinophilia and systemic symptoms (DRESS)
- Stop smoking before treatment with pirfenidone and avoid smoking while you are using this medicine.
Prescription savings · · · ·
What is Pirfenidone ?
Pirfenidone is a medication used to treat idiopathic pulmonary fibrosis, a condition that causes scarring in the lungs. It helps by blocking certain natural substances in the body that contribute to this scarring.- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Diarrhea, nausea, vomiting, heartburn, stomach pain or upset
- Dark urine or pale stools, loss of appetite, yellow skin or eyes
- Severe sunburn or increased sensitivity of the skin to sunlight
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, or stomach or bowel problems.
- This medicine may cause the following problems:Liver problemsStomach or bowel problemsSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, and drug reaction with eosinophilia and systemic symptoms (DRESS)
- Stop smoking before treatment with pirfenidone and avoid smoking while you are using this medicine.
- This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.
Pirfenidone Coupons & Prices
Pirfenidone 267MG
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Looking for a pirfenidone coupon? Pirfenidone (brand name Esbriet) is a generic-available antifibrotic medication prescribed for idiopathic pulmonary fibrosis, and its price can vary widely from one pharmacy to the next — Rx.com compares 60,000+ pharmacies so you can see today's price and find the lowest one near you.
What is pirfenidone and how does it work?
Pirfenidone is an oral antifibrotic agent — a small-molecule drug that also has anti-inflammatory and antioxidant properties. It was the first oral antifibrotic approved for lung disease and is FDA-approved to treat idiopathic pulmonary fibrosis (IPF) in adults, a chronic condition in which scar tissue builds up in the lungs. Pirfenidone doesn't reverse existing scarring, but it's used to slow disease progression, as measured by a slower decline in lung function (forced vital capacity, or FVC). It was approved in the US in 2014, after earlier approvals in Japan and Europe, with China approving it as well. Researchers have also studied pirfenidone for other fibrotic conditions, such as other interstitial lung diseases or scarring of the skin or liver, but these uses are not FDA-approved and your provider would need to discuss any off-label use with you.
Pirfenidone cost without insurance
Pirfenidone is available as a generic, alongside the brand Esbriet, but that doesn't mean price is the same everywhere. Cash and discounted prices for the same drug and quantity can differ substantially from pharmacy to pharmacy, so it's worth comparing before you fill. Enter your ZIP code above to see today's price at pharmacies near you and find the lowest option. A copay savings program is also available for eligible patients using brand Esbriet — search for the official Esbriet copay program online for current terms, eligibility, and savings amounts, since these are set by the manufacturer and subject to change.
Pirfenidone vs. other IPF treatments
Pirfenidone is one of two FDA-approved oral antifibrotic medications for IPF. The other is nintedanib, sold under the brand name Ofev, which works through a different mechanism (blocking certain growth-factor receptor pathways) but is also used to slow FVC decline in IPF. If you're taking or considering brand Esbriet, you can also compare prices directly on the Esbriet page. Your pulmonologist can help you decide which antifibrotic, if either, fits your situation — the two are not typically used together.
Pirfenidone safety information
Pirfenidone does not carry an FDA boxed warning, but its label includes several important safety points. It can raise liver enzymes or, rarely, cause liver injury, so your provider should check liver function tests before you start and periodically during treatment. It can also cause photosensitivity reactions and rash, so limiting sun exposure, wearing protective clothing, and using sunscreen are recommended. Very common side effects include nausea, diarrhea, indigestion, and vomiting; weight loss and dizziness or fatigue can also occur. Pirfenidone should not be used with strong CYP1A2 inhibitors such as fluvoxamine, and smoking should be stopped before and during treatment, since smoking can lower pirfenidone levels in the body. This is general information, not medical advice — talk with your provider about your full health history before starting or stopping this medication.
This Pirfenidone information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Pirfenidone on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.