Ondansetron is an antiemetic medication. It works by blocking the action of a chemical messenger (serotonin) in the brain that may cause nausea and vomiting during anti-cancer treatment (chemotherapy) or after surgery.
Ondansetron is used in the treatment and prevention of?nausea?and?vomiting.
Fatigue, Headache, Constipation, Diarrhoea, Decreased oxygen level in blood