Trochisci Sodii Bicarbonatis (U. S. P.)—Troches of Sodium Bicarbonate.
SYNONYM: Bicarbonate of soda lozenge.
Preparation.—"Sodium bicarbonate, twenty grammes (20 Gm.) [309 grs.]; sugar, in fine powder, sixty grammes (60 Gm.) [2 ozs. av., 51 grs.]; nutmeg, bruised, one gramme (1 Gm.) [15 grs.]; mucilage of tragacanth, a sufficient quantity to make 100 troches. Triturate the nutmeg with the sugar, gradually added, until they are reduced to a fine powder, and mix this intimately with the sodium bicarbonate; then, with mucilage of tragacanth, form a mass, to be divided into 100 troches"—(U. S. P.). About 3 grains of sodium bicarbonate are contained in each lozenge.
Action and Medical Uses.—These are antacid, and will be found useful in heartburn, especially during pregnancy, in acid stomach, and in urine containing excess of uric acid.