| abstract |
Methods and compositions for preventing, reducing, or reversing multidrug resistance (MDR) during cancer chemotherapy in patients undergoing treatment with therapeutically effective amounts of chemotherapeutic agents are provided. The methods comprise administering an anti-MDR effective amount of an N-substituted-1,5-dideoxy-1,5-imino-D-glucitol or galactitol iminosugar to a patient. |