 <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]  the effect usually lasts 3 to 6 months.The side effects of Daxxify Intramuscular: See also Warning section. Because this medication is given at the site of your condition, most of the side effects occur close to where the medication is injected. Redness, bruising, infection, and pain at the injection site may occur. Dizziness, mild difficulty swallowing, respiratory infections such as cold or flu, pain, nausea, headache, and muscle weakness may occur when this medication is used to relax muscles. Double vision, drooping or swollen eyelid, eye irritation, dry eyes, tearing, reduced blinking, and increased sensitivity to light may also occur. If any of these effects last or get worse, notify your doctor or pharmacist promptly. You may require protective eye drops/ointments, an eye patch, or other treatment. When this medication is used to prevent migraines, side effects such as headache, neck pain, and drooping eyelid may occur. When this medication is used for excessive sweating, side effects such as non-underarm sweating, respiratory infections such as cold or flu, headache, fever, neck or back pain, and anxiety may occur. When this medication is used for overactive bladder, side effects such as urinary </s>