Merck received approval from the FDA for Emend for the prevention of postoperative nausea and vomiting (PONV), one of the most common side effects associated with surgical procedures. The recommended dose of Emend for PONV is a single, oral 40 mg dose administered within three hours prior to the induction of anesthesia. Emend is believed to work through a novel mechanism that primarily blocks nausea and vomiting signals to the brain. This mechanism is distinct from how current an...