Oxygent

Oxygent was a human blood substitute designed for surgical applications by the Alliance Pharmaceutical Corp. As of February of 2005, the substance has not been approved for use by the Food and Drug Administration (FDA) as questions have been raised over its safety.

One advantage to using the substance instead of blood transfusions is that it won't spread blood-borne diseases. It is also usable in people of all blood types. Another advantage is its acceptability to Jehovah's Witnesses who refuse blood transfusions.

Oxygent is a lecithin stabilized emulsion of a perfluorocarbon.