A nurse or other trained health professional will give you or your child this medicine in a hospital or cancer treatment center. This medicine is given as a shot into a muscle or a vein.
When this medicine is used to prevent nausea and vomiting caused by cancer medicines (chemotherapy), it is usually given 30 minutes before the start of chemotherapy. Additional doses may be given 4 hours after the first dose and 8 hours after the first dose.
When this medicine is used to prevent nausea and vomiting caused by surgery, it is usually given just before anesthesia (medicine to put you to sleep before surgery) or right after surgery if nausea and vomiting begin.
Your doctor will give you a few doses of this medicine until your condition improves, and then switch you to an oral medicine that works the same way. If you have any concerns about this, talk to your doctor.