 <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] . Take the first dose as directed by your doctor, usually 1 hour before the start of chemotherapy. For the next 2 days, continue to take a dose once daily 1 hour before the start of treatment if you are getting chemotherapy that day. If you are not getting any chemotherapy, then take the dose once daily in the morning. The dosage is based on your medical condition, age, and response to treatment. In children, the dosage is also based on weight. It is important to follow your doctor's instructions for when to take each dose, how long to keep taking it, and the strength (number of milligrams) of each dose. If you have any questions, ask your doctor or pharmacist. Tell your doctor if you vomit or feel nauseated.The side effects of Aprepitant Oral: Tiredness or hiccups may occur. If either of these effects lasts or gets worse, tell your doctor or pharmacist promptly. 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. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a </s>