Seidlitz Powder

Seidlitz Powder. The spring of Seidlitz, in Bohemia, furnishes a natural aperient water, the chief constitnent of which is the double tartrate of soda and potash. The pulvis sodae tartaratae effervescens of the Pharmacopoeia consists or this drug, together with some bicarbonate of sodium contained in a blue paper, and some tartaric acid contained in a white paper. The two powders are mixed in about half a pint of water, carbonic acid is liberated, and the draught is taken during effervescence.