An antiemetic is a drug that is effective against vomiting and nausea. Antiemetics are typically used to treat motion sickness and the side effects of opioid analgesics, general anaesthetics, and chemotherapy.
Antiemetics include:
5-HT3 receptor antagonists block serotonin receptors in the central nervous system and gastrointestinal tract. Dolasetron, Granisetron, Ondansetron, Tropisetron, Palonosetron, Mirtazapine (antidepressant)
Dopamine antagonists act in the brain. Domperidone, Olanzapine, Droperidol, Haloperidol, Chlorpromazine, Prochlorperazine, Alizapride, Prochlorperazine, Metoclopramide.
NK1 receptor antagonist. Aprepitant.
Antihistamines (H1 histamine receptor antagonists). Cyclizine. Diphenhydramine. Dimenhydrinate. Doxylamine. Meclizine. Promethazine. Hydroxyzine.
Cannabinoids. Cannabis, Dronabinol, Nabilone.
Benzodiazepines. Midazolam, Lorazepam
Anticholinergics. Hyoscine
Steroids. Dexamethasone