There are a number of types of pulmonary surfactants available. Ex-situ measurements of surface tension and interfacial rheology can help to understand the functionality of pulmonary surfactants.
Synthetic pulmonary surfactants
# Colfosceril palmitate (Exosurf) - a mixture of DPPC with hexadecanol and tyloxapol added as spreading agents
# Pumactant (Artificial Lung Expanding Compound or ALEC) - a mixture of DPPC and PG
# KL-4 - composed of DPPC, palmitoyl-oleoyl phosphatidylglycerol, and palmitic acid, combined with a 21 amino acid synthetic peptide that mimics the structural characteristics of SP-B.
# Venticute - DPPC, PG, palmitic acid and recombinant SP-C
# Lucinactant - DPPC, POPG, and palmitic acid.
Animal derived surfactants
# Beractant
## (Alveofact) - extracted from cow lung lavage fluid
## (Survanta) - extracted from minced cow lung with additional DPPC, palmitic acid, and tripalmitin
##(Beraksurf) -extracted from minced calf lung with additional DPPC, palmitic acid, and tripalmitin
# Calfactant (Infasurf) - extracted from calf lung lavage fluid
# Poractant alfa (Curosurf) - extracted from material derived from minced pig lung
# Ovinactant (Varasurf) - extracted from material derived from minced sheep lung