http://coloncancersupport.colonclub.com/viewtopic.php?f=1&t=10476

Emend works in tandem with Zofran. It is usually given by IV on day 1 with your chemo and then you have a prescription for pills for day 2 and day 3. It is supposed to actually work to help control nausea later in the cycle (although you take it days 1-3). I don’t know the class of drug but that should be available on drugs.com.