Monotherapy or combination therapy w/ interferon for treatment of chronic hepatitis B. Combination therapy w/ interferon for treatment of chronic hepatitis C. Adjuvant for flu vaccination in immunocompromised patients. Adjuvant therapy for chemotherapy-induced immune depression, immune insufficiency & immune suppression in NSCLC, malignant melanoma, hepatocellular carcinoma (HCC), breast cancer, non-Hodgkin's lymphoma (CHOP program), CRC, head & neck cancer, leukemia's pancreatic carcinoma & renal cell carcinoma.