The following clinically significant adverse reactions have been associated with TREANDA in clinical trials and are discussed in greater detail in other sections of the label. Myelosuppression Infections Progressive Multifocal Leukoencephalopathy Anaphylaxis and Infusion Reactions Tumor Lysis Syndrome Skin Reactions Hepatotoxicity Other Malignancies Extravasation Injury Adverse reactions (frequency >5%) during infusion and within 24 hours post-infusion are nausea and fatigue. Most common adverse reactions (≥15%) for CLL are anemia, thrombocytopenia, neutropenia, lymphopenia, leukopenia, pyrexia, nausea, vomiting. Most common adverse reactions (≥15%) for NHL are lymphopenia, leukopenia, anemia, neutropenia, thrombocytopenia, nausea, fatigue, vomiting, diarrhea, pyrexia, constipation, anorexia, cough, headache, weight decreased, dyspnea, rash, and stomatitis.