This section is from the book "The London Dispensatory", by Anthony Todd Thomson. Also available from Amazon: PDR: Physicians Desk Reference.
"Take of dried foxglove leaves, a drachm; spirit of cinnamon, a fluid ounce; boiling distilled water, a pint. Macerate the foxglove leaves for four hours in a lightly-covered vessel, and strain : then add the spirit."
Infusum Digitalis purpureae, Edin. Dub. Infusion of Foxglove.
"Take of dried foxglove leaves, one drachm; boiling water, eight ounces; spirit of cinnamon, one ounce. Macerate the leaves with the water for four hours in a lightly covered vessel; then, having added the spirit, strain."
Syn. Infusion de Digitale purpurine (F.), Fingerhut aufgus (G.), Infuso di Digitale porporina (I.).
The strength of this infusion is just one half of that in the last Pharmacopoeia.
The faint odour and nauseous bitter taste of the foxglove are covered by the spirit of cinnamon. The solution of sulphate of iron slowly throws down in them a pale olive precipitate : acetate and diacetate of lead and infusion or decoction of yellow cinchona bark produce instantaneous and copious precipitates.
Medical properties and uses. - These infusions do not differ materially from that made by the formula of Withering, and are well calculated to obtain, speedily, the diuretic effects of the remedy. The dose is from f
ss. to f
j. given twice a day; or every eight hours, if the patient be strong, and the symptoms very urgent. For the necessary cautions to be observed in administering them, see the article Digitalis, Part ii.
 
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