Yes, we know it is a horrible experience! The last time we were admandant about no Compezene, but then they gave a drug in the same chemical family, and within minutes my son had the same reaction. Unfortunately, it lasted for a year, with random panic attacks. Upon investigation, we found the more exposure to the drug, the greater the risk for permanent neurological damage. His finally went away, thank goodness! His life is difficult enough without drug induced issues! At Mayo, the hospital oncology unit found this in young people so often, that their protocol "prohibits" the use of these drugs for nausea. They use something else. Glad you are aware of this danger.