 <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]  occur. If you notice any of these effects, tell your health care professional promptly. There have been rare reports of heart problems (including heart attack, heart failure), especially in people who have a history of heart disease, heart attack, stroke, or other risk factors for heart disease. If you notice any of the following symptoms, get medical help right away: symptoms of a heart attack (such as chest/jaw/left arm pain, shortness of breath, unusual sweating), symptoms of heart failure (such as swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), fast/irregular heartbeat. 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. Information is limited and it is unknown at this time if tixagevimab and cilgavimab cause other serious side effects. This is not necessarily a complete list of possible side effects. Contact your doctor for medical advice about side effects.The precautions of Tixagevimab Intramuscular: Before using this medication, tell your doctor </s>