Pharmaceutical formulations containing vitamin e tpgs molecules that solubilize lipophilic drugs without significant efflux inhibition, and use of such formulations

Compounds and compositions are disclosed for increasing the bioavailability of lipophilic drugs, and more specifically, to solubilizing lipophilic drugs using bioenhancers that cause no efflux inhibition or a desired degree of efflux inhibition. Methods of making and using such compositions are also disclosed.