 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  back pain. Get medical help right away if you have any very serious side effects, including: breathing problems (such as trouble breathing, shortness of breath, fast breathing), unusual decrease in urination, unusual tiredness, swelling/puffiness of the body. Rarely, serious (possibly fatal) damage to the spleen may occur. Get medical help right away if you develop stomach/abdominal pain or shoulder pain. Rarely, this medication may increase the risk of developing a certain bone marrow disorder (myelodysplastic syndrome-MDS) or blood cancer (acute myeloid leukemia-AML) in people with breast or lung cancer who are receiving chemotherapy/radiation. Ask your doctor for more details. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA </s>