 <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] . Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: headaches that are severe or don't go away, signs of liver problems (such as nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine), signs of kidney problems (such as change in the amount of urine), mouth sores, fainting, fast/slow/irregular heartbeat, unusual eye movements (nystagmus), vision changes (such as blurred vision), joint pain, swelling of the ankles/feet, pain/redness/swelling of the arms or legs, numbness/tingling of the hands/feet, signs of low levels of sodium in the blood (such as severe drowsiness, mental/mood changes including confusion, seizures). A small number of people who take anticonvulsants for any condition (such as seizure, bipolar disorder, pain) may experience depression, suicidal thoughts/attempts, or other mental/mood problems. Tell your doctor right away if you or your family/caregiver notice any unusual/sudden changes in your mood, thoughts, or behavior </s>