Liposomes as drug carriers.

The use of liposomes as drug carrying vehicles are summarized. Introduction of smaller doses, increased permeability, reduced toxicological and allergic effects and altered immunological responses are the advantages of the method. Experimental techniques for the preparation of drug containing liposomes and for their deliveries are surveyed. Proposed mechanisms for the incorporation of liposomes in cells are discussed. Examples for $\text{in vivo}$ applications and for functional liposomes capable of “homing-in” to given targets are presented.