# Poractant alfa

Drug · id `maternal:poractant-alfa` · Maternal & Newborn Atlas · release `fc5a600ec7387e71` (public)

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Browse, life stage: Newborn  
Browse, care area: Preterm and sick newborns  

## In plain language

The active substance in Curosurf: an extract of natural lung surfactant from pigs. It is one of the surfactants used for premature babies with respiratory distress syndrome.

## Technical summary

Drug, level substance. RxCUI 236381 (RxNav name poractant alfa, term type IN) read 2026-10-15. The Curosurf label describes it as an extract of natural porcine lung surfactant, which is the evidence for filing it under the surfactant class. Claims about its use sit on the Curosurf page.

## Connected pages

- A surfactant (Curosurf label description): Pulmonary surfactants (class) (`maternal:pulmonary-surfactants`)
- Filed under this front: Medicines and vaccines (`maternal:front-medicines-and-vaccines`)
- Contained in: Curosurf (poractant alfa) (`maternal:curosurf`)

## Provenance

Content hash: f3b7e6b80fae95658e988ffbf70092af15b5ce61e924d44211f2f2a14f2f3c39
Last substantive edit: 2026-10-15
Evidence last checked: 2026-10-15