This section is from the book "The Druggist's General Receipt Book", by Henry Beasley. Also available from Amazon: The druggist's general receipt book.
Sulphide of Iron. It has been used in haemorrhage, dysentery, and worms. The hydrated persulphuret (see Ferri persulphuretum hydratum, Pocket Formulary) is strongly recommended by Bouchardat as an antidote for metallic poisons; also as a remedy for incipient farcy. Dose, 1 1/2 oz. to 8 oz.
Sulphide of Mercury. See Ethiops Mineral, and Cinnabar.
Potassii Sulphidum. Sulphuret of Potassium. Mr. Blaine prescribes 2 dr. with astringents, in diabetes. In large doses it is poisonous.
Poisonous. The strong acid (oil of vitriol) is used as a powerful caustic. It is also used in ointments, or mixed with tar to form an external application. In small doses, about 1 to 2 dr., plentifully diluted; it is rarely given as a tonic. The diluted acid (1 oz. to a pint) is used as a lotion in grease, foul ulcers, etc.
See Cream of Tartar.
Purgative. Seldom given to horses, except when used in forming powders into balls. Dose for cattle 2 oz. to 4 oz. with castor oil. A common physic for dogs; dose, 2 to 4 dr.
A mild anodyne and sedative. Dose for dogs, 1 dr. Seldom given to large animals.
The astringent principle of nutgalls. A powerful astringent in diarrhoea, etc. Dose, 5 to 10 gr. Catechu is more generally used.
Tonic and vermifuge. Externally in fomentations.
Internally in old coughs, from 2 to 4 dr. Externally it is cleansing and gently stimulating. It is particularly useful in thrushes and all diseases and wounds of the feet, both of horse and cattle, to punctured wounds, and for the cure of mange and other skin diseases. Mixed with fish oil, it is applied with a brush to hard, brittle feet. Tar water (see Pocket Formulary) is also given in chronic coughs. Oil or spirit of tar is used in mange ointments, and as a dressing for sheep. The latter requires some caution, sheep having been killed by it.
A black liquid bitumen exuding from the earth. Its properties for the most part resemble those of tar.
See Antimony, Tartarized.
"Tonic, in simple indigestion, or when connected with staggers" (Delafond). Dose, 4 to 6 dr. infused in 3 or 4 pints of water.
Medicines which moderate the circulation, and reduce animal heat.
Vermifuge. A drachm of the filings daily to dogs. A horse requires from 1 to 3 oz.
An aero-narcotic poison. In small doses, diuretic and emetic. Principally used as a wash for the mange, and to destroy lice and fly in sheep. But it is not altogether safe, as it is apt to be absorbed. It vomits the dog, pig, and cat; but there are safer emetics. Herbivorous animals are less readily affected by it, but instances of its having proved fatal to them are recorded. In some parts of France, jockeys are said to stupefy vicious horses for sale, by tobacco infused in spirits.
Medicines which give tone to the fibres, and invigorate the system when relaxed and debilitated. The principal tonics used in veterinary medicines are gentian, Peruvian bark, chamomile and other vegetable bitters and astringents; and the preparations of iron, copper, arsenic, zinc, etc. The over free use of them, particularly when fever and inflammation are present is a frequent source of mischief.
 
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