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In order to secure the best results with Arm & Hammer Pure Bicarbonate of Soda (Baking Soda) when taken internally, certain simple rules must be observed. Materia Medica, Pharmacology and Therapeutics (Bastedo, Page 88) clearly outlines these rules as follows: “The effect of an alkali in the stomach will vary according to the nature of the stomach contents at the time of its administration. In the resting period (after food is digested) sodium bicarbonate merely dissolves mucus and is absorbed as bicarbonate into the blood, to increase its alkalinity directly.

“In cases of fermentation or ‘sour stomach’ it may neutralize the organic acids and so result in the opening of a spasmodically closed pylorus (the