 <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]  Agents - Gene Therapy This medication is given as a one-time dose. Your doctor will do lab/medical tests before and after you receive treatment to monitor for side effects and to see how well it works for you. This product is given by slow injection into a vein as directed by your doctor. The dosage is based on your body weight. Your doctor will closely monitor you for side effects during and for at least 3 hours after the injection. Infusion reactions such as chest tightness, headache, abdominal pain, dizziness, lightheadedness, shaking chills, flushing, or flu-like symptoms may occur. If you have symptoms of an infusion reaction, tell your doctor right away. Your doctor may give you other medications and slow down or temporarily stop the injection.The side effects of Hemgenix Intravenous: Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Etranacogene dezaparvovec may rarely cause serious (possibly fatal) liver disease. Get medical help right away if you have any symptoms of liver damage, such as: nausea/vomiting that doesn't stop </s>