Liposome are promising drug carrier systems being developed. Their suc
cessful use in the treatment of several diseases demonstrates that a s
olid rationale for clinical development of liposomes as antimicrobial
drug carriers can be established. There are a number of potential drug
candidates for liposome encapsulation. The involvement of several bio
technology companies has culminated in the design and licensing of for
mulations for the treatment of certain microbial infections and cancer
s. Understanding of liposome behavior in the body and of the physicoch
emical mechanisms involved in the interaction of liposome, drug, and c
ellular targets is essential for their future applications.