The essentials of materia medica and therapeutics / by Alfred Baring Garrod.
- Alfred Baring Garrod
- Date:
- 1874
Licence: Public Domain Mark
Credit: The essentials of materia medica and therapeutics / by Alfred Baring Garrod. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![Many of the tinctures made with rectified spirit, or with aro- matic spirit of ammonia, become milky when added to water, on account of the precipitation of the resinous or oily matters? which are insoluble in water, and a species of emulsion is thus formed. Under these circumstances it is often desirable to have mucilage of acacia rubbed up with the tincture before the addition of the water, and by this means the insoluble matters are held in suspension for a long time. prochisci. Lozenges. This group, although long officinal in the Edinburgh, is now (1867) for the first time introduced into an English Pharmacopoeia. There are ten different lozenges ; viz., of Tannic Acid, Bismuth, Catechu, Reduced Iron, Ipecacuanha, Morphia, Morphia with Ipecacuanha, Opium, Chlorate of Potash, and Bicarbonate of Soda, each with a definite amount of the active ingredients. Unguenta. Ointments. It will be observed that cerates are altogether omitted from the Pharmacopoeia, but many of the present ointments contain wax, and are similar in character and composition to preparations formerly termed cerates. In the ointments of the active principles of vegetables, as of Aconitia, Atropia, and Veratria, eight grains of the active principle are contained in about an ounce of the preparation. Vapores. Inhalations. Five of these preparations have been introduced into the Pharmacopoeia, viz., Vapor Acidi Hydrocy- anic], Vapor Chlori, Vapor Conise, Vapor Creasoti, and Vapor Iodi. They are usually prepared just before they are used, the patient being made to breathe the volatile ingredients which are given out. A suitable apparatus, or Inhaler, is necessary for their proper administration. Vina. Wines. In these preparations sherry wine is used as the menstruum instead of rectified or proof spirit. They therefore contain much less alcohol than the tinctures, but sufficient to prevent decomposition of their active ingredients. Attention to the following directions may prove of some value. Care must be taken that medicines do not acquire any impurity from the material of the vessels in which they are either prepared or kept; therefore, unless otherwise ordered, glass, or vitrified ware, such as porcelain or stone, whose surface is not glazed with lead, should be employed.](https://iiif.wellcomecollection.org/image/b21053893_0047.jp2/full/800%2C/0/default.jpg)
