Although an effective antiemetic agent, the high cost of brand-name<unk>  initially limited its use to controlling postoperative nausea and vomiting and chemotherapy-induced nausea and vomiting. Cancer treatment The 5-HT3 receptor antagonists are the primary medications used to treat and prevent chemotherapy-induced nausea and vomiting and radiotherapy-induced nausea and vomiting. Postoperative A number of medications including<unk>  appear to be effective in controlling postoperative nausea and vomiting. It is more effective than metoclopramide, and less sedating than cyclizine or droperidol. Pregnancy<unk>  is used off-label to treat morning sickness and hyperemesis gravidarum of pregnancy. It is typically used after other antinausea drugs have failed. There appears to be a low risk of harm to the baby with use during pregnancy, though there may be an increase in heart problems among the babies.<unk>  is in pregnancy category B in the US. It is not known if<unk>  is excreted in breast milk. Cyclic vomiting syndrome<unk>  is one of several antiemetic drugs used during the vomiting phase of cyclic vomiting syndrome. Gastroenteritis Trials in emergency department settings support the use of<unk>  to reduce vomiting associated with gastroenteritis and dehydration. A retrospective review found it was used commonly for this purpose, being administered in over 58% of cases. Its use reduced hospital admissions, but was also associated with higher rates of return visits to the emergency department. Furthermore, people who had initially received<unk>  were more likely to be admitted on the return visit than people who had not received the drug. However, this effect may simply be due to the agent being used more frequently in people who present with more severe illness. Its use was not found to mask serious diagnoses.
Ondansetron
Palonosetron
Alosetron
Famotidine
Cilansetron
Bromopride
Metoclopramide
Flunitrazepam