Skip to content
ppharmaranks
Menu
CompaniesProductsDrug classesConditionsBest by conditionTreatmentsInteraction checkerFood & medicinesWhat pharmacies payPill identifierMedicines & breastfeedingChildren’s dosage chartsDo medicines expire?Crushing & splitting pillsHow long meds take to workAlternating Tylenol & ibuprofenDrug recallsSupplementsSafety & lawsuitsGuidesA–ZHow we rate

CUROSURF vs INFASURF PRESERVATIVE FREE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Possible drug interaction. CUROSURF and INFASURF PRESERVATIVE FREE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

curosurfinfasurf preservative free

Rating

70/100
New

Pharmacy pays

—
—

Type

RX
RX

Active ingredient

PORACTANT ALFA
CALFACTANT

Manufacturer

Chiesi
Ony

Dosage forms

Suspension
Suspension

Drug class

Surfactant
—

Boxed warning

None
None

Treats

Newborn Respiratory Distress Syndrome
Newborn Respiratory Distress Syndrome

Frequently asked questions

What is the difference between Curosurf and Infasurf Preservative Free?

Curosurf contains Poractant Alfa, while Infasurf Preservative Free contains Calfactant — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.