Definition

A drug used in adults and children aged 1 month and older to prevent nausea and vomiting caused by chemotherapy and nausea and vomiting after surgery. Palonosetron hydrochloride blocks the action of a chemical called serotonin, which binds to certain nerves and may trigger nausea and vomiting. Blocking serotonin may help lessen nausea and vomiting. Palonosetron hydrochloride is a type of antiemetic and a type of serotonin receptor antagonist. Also called Aloxi.