In this podcast, Dr. Gary Lyman discusses nausea and vomiting. Some cancer treatments, including radiation therapy and chemotherapy, may cause these types of side effects. The best way to treat vomiting is to prevent it with medications called antiemetics. To help doctors give their patients the best possible care, ASCO has developed evidence-based recommendations for the use of drugs that prevent vomiting. These guidelines were updated in 2011 to reflect the latest research, and the purpose of this podcast is to summarize these findings.