 <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]  than the risk of side effects. Many people using this medication do not have serious side effects. Temporary swelling of the brain may occur. Some people may have small spots of bleeding in or on the surface of the brain. Your doctor will do magnetic resonance imaging (MRI) scans before and during treatment to check for these side effects, known as amyloid-related imaging abnormalities-ARIA. ARIA does not always cause symptoms and usually goes away over time. Tell your doctor right away if you develop symptoms such as headache, dizziness, nausea, trouble walking, confusion, seizures, or vision changes. 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 - In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - </s>