De aktive stoffer i SURFAXIN er sinapultid, dipalmitoylphosphati - dylcholin, palmitoyloleoylphosphatidylglycerol og palmitinsyre.
Les principes actifs de SURFAXIN sont: sinapultide, dipalmitoylphosphatidylcholine, phosphatidylglycérol palmitoyl-oleoyl (POPG) et acide palmitique.