Tags: Drug.
Ondansetron (INN) originally marketed under the brand name Zofran is a serotonin 5-HT3 receptor antagonist used to prevent nausea and vomiting caused by cancer chemotherapy radiation therapy and surgery.It has little effect on vomiting caused by motion sickness and does not have any effect on dopamine receptors or muscarinic receptorsIt is on the World Health Organization’s List of Essential Medicines a list of the most important medication needed in a basic health system.