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Infasurf (calfactant) Endotracheopulmonary instillation, suspension is a sterile, non-pyrogenic lung surfactant intended for endotracheopulmonary instillation only. It is an extract of natural surfactant from calf lungs which includes phospholipids, neutral lipids, and hydrophobic surfactant-associated proteins B and C (SP-B and SP-C). It contains no preservatives.
Infasurf is an off-white suspension of calfactant in 0.9% aqueous sodium chloride solution. It has a pH of 5.0 - 6.2 (target pH 5.7). Each milliliter of Infasurf contains 35 mg total phospholipids (including 26 mg phosphatidylcholine of which 16 mg is disaturated phosphatidylcholine) and 0.7 mg proteins including 0.26 mg of SP-B.
Excipients/Inactive Ingredients: Sodium Chloride for Irrigation, USP; Sterile Water for Irrigation, USP; Nitrogen, NF.
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