Wiktionary
seidlitz powder
alt. (context dated English) A digestive and laxative, composed of a mixture of tartaric acid, sodium bicarbonate, and potassium sodium tartrate. n. (context dated English) A digestive and laxative, composed of a mixture of tartaric acid, sodium bicarbonate, and potassium sodium tartrate.
Usage examples of "seidlitz powder".
You won't be able to tell the stuff from aspirin, penicillin or seidlitz powder.
I have always smiled at those cases of spontaneous combustion which, like fusing the component parts of a seidlitz powder, unite two people in a bubbling and ephemeral ecstasy.