AND PHARMACOrCEIA. 543 



SULPHATE OF IROK Salt of steel. Ferri Sulphas. 

 A preparation composed of sulphuric acid and oxide of iron. It 

 is sometimes used us a tonic. The dose from one to three or 

 four drachms. 



SULPHATE OF MAGNESIA, or EPSOM SALT.— 

 Magnesia Sulphas. A mild laxative that may be given with 

 advantage in catarrhal disorders. Tiie dose, from four to twelve 

 ounces, dissolved in a sufficient quantity of water. When a 

 small dose is given, it should be repeated every four or six hours, 

 until some effect is produced. 



From four to eight ounces of castor or olive oil are sometimes 

 added to a dose of the solution of sulphate of magnesia. 



SULPHATE OF POTASH. — Poto5«? Sulphas. Vitrio- 

 lated tartar, or Sal-polychrest. 



This neutral salt is a more powerful laxative than the sul- 

 phates of magnesia and soda, and more sparingly soluble in 

 water. On this account, it is most commonly employed in 

 Imman medicine, in powder ; and, when joined with rhubarb, 

 makes a good purgative. It is seldom used, I believe, for 

 horses or cattle, though it may, perhaps, make a good laxative if 

 well rubbed in a mortar with aloes, and then formed into a 

 ball. 



SULPHATE of QUININE. — quinhKB Sulphas. See 

 Bark. 



SULPHATE OF ^OJyK.— SodcB Sulphas. Vitriolated 

 soda, or Glauber's salt. This is a good laxative, and rather 

 stronger than sul])hate of magnesia. I have been informed by a 

 correspondent in Ireland, that he employed it with great success 

 in an epidemic catarrh, and without losing a single patient, 

 while a great number died under a different treatment. He 

 gave about four to six ounces three times a day, in a quart of 

 water or gruel, initil the bowels were opened. It is a good laxa- 

 tive for cattle : the dose, from six to twelve ounces. 



SULPHATE OF ZINC. — Zmc2 Sulphas. Vitriolated 

 zinc, White vitriol, or White copperas. This is a strong astrin- 

 gent application, but may be dissolved in water, and so diluted 

 as to make a useful wash for the eye. It is sometimes given in- 

 ternally as a tonic ; and, though very large doses have been given 

 to glandered horses as an experiment, without causing much in- 

 convenience, and half an ounce or more as a tonic, I am inclined 

 to think, by giving daily one or two drachms, it is more likely to 

 do good. A strong solution of suljihate of zinc is an excellent 

 application to quitters and other ulcers. 



combined, it can bo administered in much larger doses tlian in a ball, without 

 irritating the coats of the stomach and intestines, being immediately diffused 

 over a much larger surface. See Glanders. — Ed. 



