Doxorubicin, the anthracyclic antibiotic with
broad spectrum anti tumor activity, shows a
dose dependant irreversible cardio toxic effect.
Niosomal delivery of this drug to mice bearing
S-180 tumor increased their life span and
decreased the rate of proliferation of
sarcoma58. Niosomal entrapment increased the
half-life of the drug, prolonged its circulation
and altered its metabolism. Intravenous
administration of methotrexate entrapped in
niosomes to S-180 tumor bearing mice resulted
in total regression of tumor and also higher
plasma level and slower elimination