Anti-emetic

Anti-emetics lessen nausea and vomiting:

• 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].

•  ∧   
  Gastro-intestinal System (GI)

•  >   
  Coffee (Coffea arabica)
•  >   
  Shepherd's Purse (Capsella bursa-pastoris)

[Culbreth1927] David Marvel Reynolds Culbreth. A Manual of Materia Medica and Pharmacology, Seventh Edition. Philadelphia, PA: Lea & Febiger (1927). Online Reprint.