Editing Chemoreceptor trigger zone (section)

==Antiemetic drugs coupled with pain relieving medications==
Oftentimes, doctors will "pre-treat" patients who might exhibit emetic responses due to drugs they prescribe them. Usually pain relieving drugs such as opioids are co-prescribed with anti-emetic drugs to stop the emetic response due to the pain reliever before it can even mediate its effects on the CTZ. This way, the patient does not have to worry about the doctors prescription to treat their pain causing them to be in severe discomfort via vomiting.