The use of multifunctional synthetic compounds to both stabilize and preserve therapeutic emulsions is described. The multifunctional synthetic compounds have unique molecular arrangement wherein a phosphate group is linked to one, two or three quaternary ammonium functionalities via a substituted propenyl group, and each quaternary ammonium functionality is further linked to at least one long hydrocarbon chain. The pharmaceutical emulsions which include these multifunctional compounds may be prepared without heating or homogenization, and do may not require the use of any additional stabilizing or preserving agents.
