| abstract |
A composition comprising a biologically active agent and a permeation enhancing lipid wherein the permeation enhancing lipid is a platelet activating factor antagonist or a biologically inactive a platelet activating factor, and increases permeability of the biologically active agent across a tissue layer. Also disclosed is a process of increasing the permeability of a biological agent across a layer tissue comprising contacting the tissue layer with a composition comprising the biological agent and a permeation enhancing lipid wherein the permeation enhancing lipid is a platelet activating factor antagonist or a biologically inactive platelet activating factor. |