آنتی مونی پتاسیم تارتارات همی هیدرات-Antimony potassium tartrate hemihydrate

Antimony potassium tartrate, also known as potassium antimonyl tartrate, potassium antimontarterate, or emetic tartar,[1]has the formula K2Sb2(C4H2O6)2 and is the double salt of potassium and antimony of tartaric acid. The compound has long been known as a powerful emetic, and was used in the treatment of schistosomiasis and leishmaniasis.

Antimony potassium tartrate's potential as an emetic was known since the Middle Ages. The compound itself was considered toxic and therefore a different way to administer it was found. Cups made from pure antimony were used to store wine for 24 hours and then the resulting solution of antimony potassium tartrate in wine was consumed in small portions until the wanted emetic effect was reached.[2][3][4]

Today, the compound is still used to induce vomiting in captured animals to study their diet.[5][6][7]