 <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]  lab appointments.  Missed Dose Not applicable.  Storage Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Emend (Fosaprepitant) Intravenous: Fosaprepitant is used with other medications to help prevent nausea and vomiting caused by cancer drug treatment (chemotherapy). Fosaprepitant works by blocking one of the body's natural substances (substance P/neurokinin 1) that causes vomiting.This medication will not treat nausea or vomiting that has already started. Ask your doctor what you should do if you already have nausea or vomiting. How to use Emend Vial Read the Patient Information Leaflet if available from your pharmacist before you start using fosaprepitant and each time you get treatment. If you have any questions, ask your doctor or pharmacist. This medication is given by injection into a vein by a health care professional as directed by your doctor. The infusion of </s>