Obs. An excellent stomachic, antacid, and laxative.—Dose, 20 gr. to 1⁄2 dr. Some druggists substitute the heavy carbonate for the calcined magnesia ordered above, but this alters the nature of the preparation, and requires the dose to be increased. Heavy calcined magnesia may, however, be employed with advantage.
Powder, Sach′et. See Scented powders.
Powder, Saline′ (Compound). Syn. Pulvis salinus compositus (Ph. E.), L. Prep. (Ph. E.) Pure chloride of sodium and sulphate of magnesia, of each 4 oz.; sulphate of potash, 3 oz.; each separately dried by a gentle heat, and pulverised, then triturated together, and preserved in well-closed vessels. An excellent saline purgative.—Dose, 2 to 6 dr., in 1⁄2 pint of water or table-beer, in the morning, fasting.
Powder of Scammony (Compound). Syn. Pulvis scammonii compositus (B. P., Ph. L., E., & D.), L. Prep. 1. (Ph. L.) Scammony and hard extract of jalap, of each 2 oz.; ginger, 1⁄2 oz.; rub them separately to a very fine powder, and then mix them.—Dose, 5 to 15 gr.
2. (Ph. E.) Scammony and bitartrate of potassa, of each, in very fine powder, equal parts.—Dose, 7 to 20 gr.
3. (Ph. D.) Scammony, in fine powder, 1 oz.; compound powder of jalap, 3 oz.; mix,—Dose, 10 to 30 gr.
4. (B. P.) Scammony, 4; jalap, 3; ginger, 1; mix, and reduce to fine powder.—Dose, 10 to 20 gr.
Obs. The above are favourite cathartics in worms, especially for children. They are commonly sold for basilic powder. (See above.)
Powder of Scammony with Cal′omel. Syn. Pulvis scammonii cum calomelane, L. Prep. From scammony, 1⁄2 oz.; calomel and white sugar, of each 2 dr. An excellent vermifuge for children.—Dose. For an adult, 5 to 20 gr.; for a child, 2 to 8 gr. Sold for basilic powder, to which it approaches nearer in composition than the preceding.
Powder of Scammony with Soot. Syn. Pulvis scammonii cum fuligine; Poudre d’Ailhaut. Prep. Scammony, 1 dr.; wood soot, 11⁄2 dr.; resin, 2 dr.; mix. Dose, 1⁄2 dr. A once fashionable purgative.