The present invention provides therapy and methods for the treatment and prevention of diseases of cell proliferation such as cancer, benign tumors, and viral diseases such as HIV-AIDS, hepatitis B, hepatitis C and cirrhosis. The methods of this invention consist of the administration to a patient of a combination of effective amounts of agents capable of eradicating the neoplastic cells, while sparing the non-neoplastic cells from cytotoxic side-effects. The agents co-administered in therapeutically effective amounts are: chemotherapeutic agents, apoptotic agents, anti-angiogenic agents, cell differentiation agents, immunomodulating agents, antioxidants, vitamins, microelements, enzymes and natural extracts.