Towards a new galenic dosage form, the liposomes?

Liposomes used first as models for the study of cellular membrane permeability have been proposed about ten years ago as intracellular carriers of therapeutic substances. Since then a large number of fields of application have been explored. The difficulties encountered are important enough for having hampered any therapeutical application. Nevertheless, the first results are not negligible and provided that the efforts keep their multidisciplinary character, the concept of intracellular carrier should meet some success.