A guide to therapeutics / by Robert Farquharson.

  • Farquharson, Robert, 1836-1918.
Date:
1883
Catalogue details

Licence: Public Domain Mark

Credit: A guide to therapeutics / by Robert Farquharson. Source: Wellcome Collection.

    79/394 (page 65)
    and acidum aceticum glaciale. Then we have vinegar, the strength of which corresponds pretty accurately with the dilute acid, and which is purely a domestic remedy for headache, hysteria, and other allied conditions. ACIDUM CITRICUM. External Use. Citric acid was proposed a few years ago as a soothing local application to cancerous sores, but of this little has recently been heard. Internal Use. Citric acid is used chiefly as a cheap and convenient substi- tute for lemon juice in effervescing draughts, which are very extensively prescribed on account of their cooling and refreshing properties in feverish conditions, and for the soothing influence of their carbonic acid when the stomach is irritable. Whenever lemon juice can be procured, it should be used in preference; but at periods of the year when this fruit is out of season, citric acid will act well, and we here give a table from Squire, showing the proportions in which the acid and alkali should be prescribed to ensure exact saturation :—■ 17 grs. of citric acid, or half a fluid ounce of fresh lemon juice - neutralise '25 grs. bicarbonate of potash. 20 •)•> carbonate of potash. 20 bicarbonate of soda. 35 ■>■> carbonate of soda. 15 •>•> carbonate of ammonia, .13 ?? carbonate of magnesia.. Acidum tartaricum, being cheaper than citric acid, is often used to construct effervescing draughts. Dose, 20 to 30 grs.