Uncommon side effects due to MabThera (reported in more than 1 out of 1000 patients) include: • abnormal clotting, decrease of blood cells production, autoimmune decrease of red blood cells, swollen/enlarged lymph nodes • low mood and loss of interest or pleasure in usual activities, nervousness • taste changes • heart disorder (heart attack, abnormally fast heart rate, reduced heart rate, irregular heart rate, chest pain) • inflammation, irritation and/or tightness of the lungs, asthma, shortness of breath • enlargement of the abdomen • pain at the infusion site