Definition of Anti-nausea:
Anti-nausea agents lessen nausea; see also Anti-emetic. There are different mechanisms of action:
- Local - which produce a sedative action on the end-organs of the gastric nerves: ice, phenol; bismuth subnitrate and subcarbonate, cerium oxalate, creosote, small doses of calomel or ipecac, hot water, opium, cocaine;
- General - which act by reducing the irritability of the vomiting-center in the medulla: opium, bromides, morphine, codeine, chloral hydrate, alcohol, amyl nitrite, food, brandy [Culbreth1927, pg 43].