Seidlitz powders

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Seid′litz pow`ders

(ˈsɛd lɪts)
a mild laxative consisting of tartaric acid, sodium bicarbonate, and Rochelle salt dissolved separately, mixed, and drunk after effervescence.
[1805–15; alluding to mineral water from springs near Seidlitz, a town in Bohemia]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Seidlitz powders - an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic
aperient, cathartic, physic, purgative - a purging medicine; stimulates evacuation of the bowels
References in classic literature ?
Here the man proceeded to mend his pen with great deliberation, while another clerk, who was mixing a Seidlitz powder, under cover of the lid of his desk, laughed approvingly.
In the pharmaceutical industry, Sodium Potassium Tartrate is used in the form of Seidlitz powders as a mild purgative.